r/Unbuilt_Architecture is a subreddit with 17k members. The most common kinds of discussions are ideas and opportunities, and the community frequently discusses design, building, proposal, architecture, and city.
A subreddit dedicated to images and discussion of architecture that was never built or fully realized.
Popular Themes in r/Unbuilt_Architecture
#1
Ideas
: "The American Indian Memorial was a proposed monument which was supposed to be built at the entrance of the New York Harbor. The monument would have been 50 meters tall (165ft) and would have housed a museum dedicated to Native American culture. The outbreak of WW1 halted the project."
56 posts
#2
Opportunities
: "The Batoni Plan for Omniplex, a sports arena proposed in 1967 for Edmonton, Alberta, intended to revitalize a declining downtown. Also would have included a convention centre, movie theatre, retail, and links to rapid transit. Defeated in a 1970 plebiscite due to concerns over cost and practicality"
2 posts
Popular Topics in r/Unbuilt_Architecture
#1
Design
: "Original Design for the Washington Monument. It was not fully carried out due to low funding."
191 posts
#2
Building
: "An evolution of New York City's Chrysler Building, showing the added height to compete for title of world's tallest Building at the time. 1920's. William Van Alen."
126 posts
#3
Proposal
: "Commonwealth of Belle Isle – 2013 Proposal by a group of wealthy investors to purchase the Detroit park for $1 billion and turn it into a libertarian city-state with a $300,000 citizenship fee and no car-access (only monorail)"
98 posts
#4
Architecture
: "Renewal Plan of Tsukiji District, Tokyo by Kenzo Tange. Prime Example of Metabolist Architecture in Japan"
86 posts
#5
City
: "Commonwealth of Belle Isle – 2013 proposal by a group of wealthy investors to purchase the Detroit park for $1 billion and turn it into a libertarian City-state with a $300,000 citizenship fee and no car-access (only monorail)"
67 posts
#6
Unbuilt
: "Miguel Rodrigo Mazure's Unbuilt 1969 design for a hotal at Machu Picchu, Peru"
65 posts
#7
Spain
57 posts
#8
Plan
: "Proposed Plan for Battery Park, New York City, 1929. Eric Cugler. The 800 foot obelisk would be a World War I memorial. A much smaller memorial for WW2 was opened in 1963."
52 posts
#9
Skyscraper
: "Convocation Tower (1921), a 1,000-ft-tall Gothic Skyscraper for New York"
35 posts
#10
Tower
: "1936 project to make the second floor of the Eiffel Tower accessible by car."
35 posts
Member Growth in r/Unbuilt_Architecture
Yearly
+637 members(3.9%)
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Last updated: June 15, 2026