• This website includes dozens of videos, hundreds of essays, and thousands of drawings created over the past twenty years. Search to learn more about the history of buildings, places, prisons, Newark, New York City, and my PhD research on spatial inequality.

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Computer Model of the Kaaba in Mecca

Developed with input from James White,
historian of Islamic literature at the University of Oxford
The Kaaba (Arabic: ٱلْـكَـعْـبَـة “The Cube”) is a building at the center of Islam’s most important mosque in Mecca, Saudi Arabia. This is the most sacred site in Islam. Muslims consider it the “House of God.” Wherever they are in the world, Muslims are expected to face the Kaaba when performing prayer. One of the Five Pillars of Islam requires every Muslim to perform the Hajj and visit the Kaaba.
In 2018, I was unhappy with the available quality of 3D digital models of this important building for Muslim culture. I could find no models that were detailed or accurate enough. So I created this accurate-to-the-inch model based on architects’ drawings and photos.

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Audio: the call to prayer, recorded in Istanbul

 

University of Michigan Campus Drawing

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I made a map of each place where I lived an extended period of time: Newark, New York City, Oxford University, Columbia University, and now the University of Michigan. This map depicts almost every major landmark on the University’s central campus and took about 300 hours to create over the past 18 months. Click the image for full resolution or scroll down for details.
Medium: ink on paper with watercolor wash
Dimensions: 26 by 45 inches (66 by 114 centimeters)
Sources: synthesized from Google Earth, satellite images, maps, and street view
Please contact [email protected] to order artist quality prints of this image. The image can be printed at any size you need: as small as 10 inches to as large as 180 inches wide with no loss in image quality.

 

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Image is provided at resolution suitable for viewing, but not for large-format printing.
Please contact me for the source file.

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1. Image Annotated with Building Names:

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2. Work in Progress:

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3. Detail Views:

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Image is provided at resolution suitable for viewing, but not for large-format printing.
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Mapping Manhattan Chinatown’s Public Realm

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Created with architect and urbanist Stephen Fan for City as Living Lab
Funded by the University of Michigan’s Rackham Program in Public Scholarship

Inspired by reading the book Manhattan’s Public Spaces:
Production, Revitalization, Commodification
by Ana Morcillo Pallarés

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Chinatown’s Public Realm

Along Mott Street, boxes of fruits and vegetables from the US, Latin America, and China flow from the private open storefronts and onto the public sidewalks and curbs. Forklifts navigate around crates and delivery trucks as vendors, residents, tourists, and shoppers–from regional Asian restaurant owners to West-African immigrants–animate the narrow walkways. After business hours, private produce stands become public places to sit, chat, people-watch, or nap as a sidewalk masseuse sets up two chairs on the public sidewalk to provide his private services.
Away from the commercial corridors, teenagers sit in circles sipping on bubble tea on the Pace High School track while senior citizens slap playing cards on a makeshift table along the track perimeter. Inside the Chinese Consolidated Benevolent Association, teachers begin their Chinese language class while protesters in Columbus Park call for ending violence against Asian Americans.
In creating this map, we hope to stimulate conversations about how public space can be better used, designed, managed, and reimagined: to inspire action in shaping a more resilient and inclusive public realm.

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Read the map in English and Chinese PDF. 阅读简体中文版

2,500+ copies printed and distributed

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Credits and Collaborators:

In alphabetical order

Stephen Fan – co-author

Lulu Barry – map docent
Kari Conte – CALL staff
Liza Cucco – program manager
Olivia Georgia – executive director of CALL
Shane Keaney – graphic designer
Rebecca Lucher – programs and operations
Mary Miss – founder and artistic director of CALL
Calla Flood Tardino – CALL staff
Chloe Zhang – map docent

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Process

This map illustrates the public/private uses/spaces of Manhattan Chinatown’s pedestrian life. The map is divided into two sections: the upper depicts public spaces, and the lower section private spaces. From left to right are a spectrum of private to public uses.
In consultation with Chinatown residents and based on a series of walking tours and community forums, we developed the themes and activities shown on this map. We were inspired from reading Jane Jacobs and Michael Sorkin’s descriptions of street life and the delicate balance of public vs. private uses that play out on the city sidewalks. We hope this map will be a classroom and community resource to equip the public with a language and questions to interrogate their own built environments.
Below are scenes from a community event we held in summer 2021. Chinatown residents were invited to annotate an early draft of our map with their experiences and memories of the community.
In addition, over spring and summer 2024, City as Living Lab commissioned two students as map docents – Lulu Barry and Chloe Zhang – to sit in front of the map each Friday and Sunday afternoon. They engaged in conversation at their table with passing Chinatown residents and tourists, sharing insights from the map and eliciting community responses to this project. Thanks to their work, this project now has a larger audience and copies of the map are distributed across dozens of Chinatown community partners.

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Walking Tours and Community Meetings

From summer 2024

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Chinese music: Feng Yang (The Flower Drum)

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The University of Oxford in a Box

 

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Music: Minuet in G Minor by Bach

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This paper model of Oxford folds out of a leather suitcase. This is a souvenir of my Oxford experience.
Half the model features university’s main buildings: The Radcliffe Camera, Bodleian Library, Sheldonian Theatre, University Church, and the Clarendon Building. The other half is the campus of Saint Catherine’s College in Oxford.
Attaining precision in a small model is difficult and took about two weeks to build. It is made from paper cutouts, which were folded into various shapes. Below are two of the cutouts before assembly. Dimensions: 7 by 14 inches and 1.5 inches deep.
Below is the image of one of these cutouts before assembly, and the ground plan of the campus before the paper buildings were mounted on cardboard.

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Computer models of world heritage sites

Through digital models, architecture’s audience can expand beyond in-person visitors. Here are a few of my creations that can be explored in virtual reality. The need for models to load in the web browser imposes a creative limit on file size and numbers of polygons and textures model can contain. Too many textures or too much geometry and a model will not load. This process therefore requires me to be economical and to get the most amount of detail with the least amount of file size. All models featured below are about the size of a word document or email attachment.

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Models reveal aspects of construction and design that are otherwise invisible. Amiens Cathedral and the Kaaba in Mecca are illustrated from below as if the ground were invisible. The view of the Kaaba from above is only possible through computer models, due to religious restrictions on flying above the Kaaba. When viewed below, the cathedral appears to float in the air as if it were an image of heaven, as its medieval masons in fact intended when they built vaults and towers that reached so high.
I can also strip away later changes or decay to restore a building to its original, imagined, or ideal appearance. Jerusalem’s Dome of the Rock and Al-Aqsa Mosque (which are surrounded by trees and Roman-era walls) or Amiens Cathedral (surrounded by the modern city) appear more complete in my models than they are in reality. To quote from Viollet-le-Duc, the restorer of French cathedrals like Notre-Dame of Paris:
“To restore a building is not to preserve it, to repair, or rebuild it; it is to reinstate it in a condition of completeness which could never have existed at any given time.”

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The Kaaba

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Plan of Al-Aqsa Mosque

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Plan of Amiens Cathedral

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Section of Amiens Cathedral, based on a drawing by Eugène Viollet-le-Duc.

The Digital Cathedral of Amiens

Created with architectural historian Stephen Murray
As featured on Columbia University’s Art Humanities website

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1. Construction Sequence: 1220-1528

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Thanks to InUnum Ensemble for recording the accompanying song by Pérotin: Beata Viscera, c.1220

 

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1220-c.1225
Master Robert de Luzarches began work on the foundations and lower wall.
He may have been assisted by Thomas de Cormont
1225-30
Master Robert de Luzarches and Thomas de Cormont constructed the south nave aisle
rapidly to provide space for liturgical celebrations
1230-1235
Master Robert de Luzarches and Thomas de Cormont built the north nave aisle
soon afterwards
1240s-c.1250
Master Thomas de Cormont constructed the upper nave and belfries of western towers
c.1250
Master Thomas de Cormont died having completed the upper nave,
begun the upper transept and laid out the lower choir
1250s-1260s
Master Renaud de Cormont completed the upper transept and upper choir
The axial window of the choir clerestory was installed in 1269
1280s-c.1310
Main roof installed from east to west
1360s-c.1400
Construction of west towers
1528
Old steeple destroyed by lightning; construction of the grand clocher doré completed c.1533

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Text by Stephen Murray

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2. Amiens Cathedral in Cross Section

This film shows the cathedral in cross section,
exploring the relationship between interior and exterior spaces.

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Music: Mille Regretz by Josquin des Prés

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Section of choir

Section of western half of cathedral

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3. Cathedral Flythrough

Viewers approach Amiens from the west, like medieval pilgrims did. Viewers then move through the complex system of flying buttresses that support the cathedral vaults. The animation then reconstructs the dynamic geometry that engineers encoded in the cathedral floor plan. The film closes with the view from below the foundations, as if the cathedral were floating on air.

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Music: Viderunt Omnes by Pérotin, 1198

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Section of the nave roof

Section of west façade

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amiensAlong with the Parthenon, Amiens Cathedral is introduced each semester to students in Art Humanities. This seminar has been taught since 1947 and is required of all undergraduates as part of the Core Curriculum. Through broad introductory courses in art, literature, history, music, and science, the Core aims to produce well-rounded citizens of Columbia University students. Amiens was chosen as representative of all Gothic architecture, and as a lens through which to teach skills of visual analysis. This computer model I created instructs over 1,300 students per year.
Based on the computer model, I produced the three short films above: (1) a construction sequence, (2) a digital flythrough of the finished cathedral, and (3) a speculative animation of the cathedral in cross section. This trilogy is complemented with music from Pérotin (the thirteenth-century French composer) and Josquin des Prés (the fifteenth-century composer). Both musicians also happen to be featured in the Music Humanities component of the Core Curriculum.
My objective is to digitize and re-imagine Amiens. To borrow a quote from Viollet-le-Duc, the legendary nineteenth-century preservationist-architect of Notre-Dame of Paris, my aim was “to restore the building to a state of completeness that may have never existed.” For instance, Amiens lost almost all of its original stained glass windows and large parts of its nave. My project responds by presenting the cathedral in an idealized light. Awkward walls, later additions, and anachronistic features can all be airbrushed away from my model, so as to reveal how the master masons originally envisioned their cathedral in the thirteenth century.
A building is experienced as a sequence of sights and sounds. A research text about such a building, however, can only capture limited information. Photography, film, and computer simulations are, in contrast, dynamic and sometimes stronger mediums to communicate the visual and engineering complexity of architecture. This project seeks to capture dynamic Amiens through a visual, auditory, and user interactive experience. Through film, one can recreate and expand the intended audience of this architecture, recreating digitally the experience of pilgrimage.
In Viollet-le-Duc’s 1863 book, Entretiens sur l’architecture, he presented Gothic architecture as the synthesis of a Roman basilica and a Romanesque church. After several centuries of evolution, these two forms merged into the singular form of the Gothic cathedral. For him, the Gothic cathedral (particularly Amiens) was the pinnacle of human architectural and aesthetic achievement. In other words, the cathedral’s form and plan evolved in response to theology and changes in the rituals of the Mass.
The two animations below illustrate Viollet-le-Duc’s thesis about Gothic. Although later scholars dispute his simplistic analysis, his work remains influential.

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Evolution of the cathedral from early Christian to late Gothic

 

Development of the cathedral plan over 1,000 years.
Inspired from Viollet-le-Duc’s writing

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Cathedrals and History

In the absence of surviving written records, many scholars read cathedral construction as a proxy for economic growth, or as a symbol for the structure of medieval society. The decision of where and when to start building a cathedral was tied to the right economic and political conditions. The large majority of cathedrals were built in the region of Northeastern France during the High Middle Ages – during a period of remarkable economic growth and productivity in the thirteenth century. Construction slowed after climate change caused failed crops, followed by the Great Famine (1315) and the Black Death (1350). The economic conditions and cathedral construction never rebounded for a long time afterwards, and when construction did rebound, Europe had entered the Renaissance with a new aesthetic sensibility different from Gothic Amiens
The cathedral can also be read as a political symbol. Funding came from a combination of donations, indulgences, and taxes on church-owned farmlands. The logic between competing regions and feudal kingdoms in medieval France reads something like: the larger and prettier the cathedral, the larger and more powerful the city and sponsors behind it. For many of these towns, the size of the cathedral was well out of proportion to the actual size of the town. Amiens, for instance, was one of the largest cathedrals in Europe for a town of ~26,000. The other cathedral town of Chartres was, similarly, competing with Paris for power and independence. Cathedral were architectural symbols for the competitions between cities and regions. In this light, the cathedral became as much a religious space as a political statement of civic identity.

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Credits

I am indebted to the expert guidance of medieval historian Stephen Murray, who mentored me in the fall 2016 seminar Life of a Cathedral: Notre-Dame of Amiens. I also thank Columbia’s Center for Career Education for funding this project through its Work Exemption Program.

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Method

Anyone can download and edit this model for free with SketchUp. Over 3,000 people have downloaded this model, and numerous others have 3D printed it as part of their architecture studios. Among software, SketchUp is easiest to learn. Within minutes, students and teachers unfamiliar with SketchUp can build their own models with ease. In response to several rounds of edits and suggestions from Stephen Murray, I finished this model and exported the animation for final edits and special effects.
In this recorded lecture, I describe the workflow and editing process behind this project.

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Sources

– Based on Stephen Murray’s measurements and drawings of Amiens from 1990 (link)
– And these hand drawings by George Durand from 1901-03 (link).

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Related Projects

This project is published to Columbia’s website. I expanded on Amiens Cathedral for my senior thesis about the medieval church of St. Denis, and I continued building computer models as a research assistant at Columbia University’s Media Center for Art History.
I also researched the construction of:
The Eiffel Tower
Burford Church near Oxford, England
St. Paul’s Cathedral dome in London
Jeremy Bentham’s panopticon
Notre-Dame of Paris

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The cathedral from your computer

Animated Glossary of Amiens Cathedral

This model shows a section of Amiens’ nave with the labyrinth below. Photo-realistic textures from actual photos and drawings of Amiens enhance the illusion of reality. Click numbered annotations to view details. Click and drag mouse to fly around the model. Please be patient while the model loads.

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Amiens Cathedral Exterior Computer Model

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Amiens Cathedral Exterior Photos

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Amiens Cathedral Interior

Gallery is organized sequentially to mirror the experience of walking through the cathedral.

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Cross Sections

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Dynamic Angles

Computer models allow us to explore architecture in ways not possible in reality. With Amiens floating in the sky, one looks up to the grid of vaults and the forest of columns. The cathedral is real, but the views of it are imaginary.

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Rome: The Eternal City

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Roma, te amo, labeled.

Rome, the Eternal City, the city of a thousand jeweled churches. Each church a treasure trove of glistening gold and baroque drapery cascading over its roof and walls. Each street a channel to and from some unexpected street side treasure: A Roman coffin turned public fountain, a marble column turned city wall, or a dark alley where the sound of water drips eternally. Rome is the city of reinvention with each subsequent structure built on the physical and symbolic history of Greece, Rome, the Middle Ages, the Renaissance, and the modern era.
Physicist Isaac Newton once proclaimed that: “If I have seen further, it is by standing on the shoulders of giants.” Rome, too, can remind herself that: If I stand more powerful and majestic, it is not thanks to current accomplishment but to the bedrock of history that accumulates treasures through time and value through age. Rome, too, stands “on the shoulders of giants:” The Roman Empire gave Rome her aqueducts and temples, the Renaissance gave Rome her churches, and the hand of Mussolini gave Rome her fascist monuments and boulevards sliced through the urban core.
Despite being grounded in history, Rome is very much a city of the present. The human fabric of this city may have left the urban core with waves of gentrification and tourism, but the spirit of a living and breathing city endures. North African immigrants peddle their umbrellas and selfie-sticks in the shadows of the Coliseum. Mass with the Pope continues in Saint Peter’s beneath Michelangelo’s majestic dome. Tourists may come and go. Time may pass. The Eternal City will endure and evolve.
When I returned home, I painted a map of Rome from memory (seen above). When I gaze at this map, framed in my room, I am reminded of the generations of historians who passed before me. I wonder in what way will I contribute to understanding the built environment. Rome still appears in my dreams, where I walk through Rome on the cobblestone paths that guide me forward. When I awake, I have a mental image of where I traveled.

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Pantheon Facade

Reflection on Walking in New York City

Dedicated to Professor Brendan O’Flaherty for helping me apply to Columbia as an undergraduate. The following video lecture contains paintings and photos I compiled while walking in New York.

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Learn more about my New York walks in this collection of photos and drawings. They are organized into ten urban walks, with each day in a different Manhattan neighborhood.
Strolling in New York City is a world tour. The street fairs of Spanish Harlem mesh into college town Columbia. Columbia gives way to the shabby chic of Harlem. A few blocks farther and I am drowned by the tourists of Times Square. Further still and I reach the bustle of Wall Street brokers. I stroll and try to identify the passing languages. Spanish in the outer boroughs. Polish in Greenpoint. Russian in Brighton Beach. Cantonese in Chinatown. French and German shoppers in SoHo. There could be no more fitting a place for the United Nations.
Reading Here is New York by E.B. White, I realizethat  some aspects of New York have changed little in the past seventy years. The streets, cars, and tenements are different, but the essential spirit of dynamic and diverse urbanism remains. Here is New York.