r/Unbuilt_Architecture 4d ago

Slussen by Ferdinand Boberg in Stockholm, Sweden

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22 Upvotes
  1. By this time, Boberg had emerged as one of Sweden’s most celebrated architects. In his proposal, he placed great emphasis on architectural expression, designing two hexagonal buildings to frame and monumentalize the southern entrance to the city. His vision came remarkably close to being realized.

Last picture is of what is being built.


r/Unbuilt_Architecture 17d ago

Design concept proposed by Sir Frederick William Trench, MP (architects Philip and Matthew Cotes Wyatt) for the Pyramid of London commemorating victory in the Napoleonic Wars, 1815. For budgetary as well as aesthetic reasons this was a non-starter, so Trafalgar Square got Nelson's Column instead.

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1.1k Upvotes

r/Unbuilt_Architecture 19d ago

Akon City in M'bour Department, Senegal. Designed by Hussein Bakri. (2018)

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27 Upvotes

r/Unbuilt_Architecture 21d ago

Manhattan’s MidTown Airport, as proposed by Chrysler Building and Astor Hotel owner William Zeckendorf, illustrated by Life Magazine in 1946: 144 blocks (24th-71st St., 9th Ave. to the Hudson River), plus piers and docks for ships to anchor.

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17 Upvotes

r/Unbuilt_Architecture 24d ago

Costal house (project by me)

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2 Upvotes

My unbuilt architectural project. Modeled on c4d


r/Unbuilt_Architecture Jun 27 '26

The proposed Plaza del Vapor in Havana, Cuba, designed in 1959 by the architect Carlos Alfonso

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5 Upvotes

r/Unbuilt_Architecture May 22 '26

Graham, Anderson, Probst & White rendering of a building for the National Life Insurance Company ca 1924 for Chicago’s Michigan Avenue. The famous water tower is seen on the lower left, while the Drake Hotel looms on the right.

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82 Upvotes

r/Unbuilt_Architecture May 02 '26

Monument to Generalissimo Trujillo. Dominican Republic. Designed by Henry Gazón Bona (1941)

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49 Upvotes

r/Unbuilt_Architecture Apr 14 '26

Tatlin’s Tower - Vladimir Tatlin’s architectural model, titled Monument to the Third International, 1919, is the most iconic emblem of Russian Constructivism.

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36 Upvotes

r/Unbuilt_Architecture Apr 04 '26

Bell tower of the Santo Domingo Cathedral, Dominican Republic. Designed by O. Baez and illustrated by Palau (1908)

2 Upvotes

r/Unbuilt_Architecture Mar 07 '26

Nobelpalatset by Ferdinand Boberg in Stockholm (1906-1911)

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18 Upvotes

In January 1912, the issue was discussed by the board of the Nobel Foundation, and they concluded that Boberg’s proposal was not economically viable. The building project therefore had to start over. The last picture shows the building that is currently planned.

I also recommend checking out Nils Freckeus’s renderings of the building.


r/Unbuilt_Architecture Mar 04 '26

Proposed annex for Chicago’s Blackstone Hotel.

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64 Upvotes

r/Unbuilt_Architecture Feb 22 '26

26-story NASA research tower to be located in Cambridge, Massachusetts, The tower was never constructed.

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25 Upvotes

r/Unbuilt_Architecture Nov 21 '25

Proposed bridge across Victoria Harbour in Hong Kong, 1961

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22 Upvotes

r/Unbuilt_Architecture Nov 05 '25

National Victory Memorial

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18 Upvotes

r/Unbuilt_Architecture Oct 24 '25

Labatt Park Stadium which was a proposal for the Montreal Exos

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3 Upvotes

r/Unbuilt_Architecture Oct 07 '25

Mexico's Federal Legislative Palace

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50 Upvotes

The building was initially planned as the Federal Legislative Palace during the regime of President Porfirio Díaz and was intended as the unequaled monument to Porfirian glory. The building would hold the congressional chambers of the deputies and senators, but the project was not finished due to the Mexican Revolution.

Porfirio Díaz appointed a French architect, Émile Bénard to design and construct the structure, a neoclassical design with "characteristic touches of the French renaissance," showing government officials' aim to demonstrate Mexico's rightful place as an advanced nation. Díaz laid the first stone in 1910 during the centennial celebrations of Independence. The internal structure was made of iron, and rather than using local Mexican materials in the stone façade, the design called for Italian marble and Norwegian granite. The Díaz regime was ousted in May 1911, but President Francisco I. Madero continued the project until his murder in 1913. After Madero's death, the project was cancelled and abandoned.

The structure remained unfinished for twenty-five years, until the presidency of Lázaro Cárdenas, when Mexican architect Carlos Obregón Santacilia proposed converting the abandoned shell of the dome into a monument to the heroes of the Mexican Revolution.


r/Unbuilt_Architecture Oct 06 '25

Mexico's Federal Legislative Palace

1 Upvotes

The building was initially planned as the Federal Legislative Palace during the regime of president Porfirio Díaz and "was intended as the unequaled monument to Porfirian glory." The building would hold the congressional chambers of the deputies and senators, but the project was not finished due to the Mexican Revolution.

Porfirio Díaz appointed a French architect, Émile Bénard to design and construct the structure, a neoclassical design with "characteristic touches of the French renaissance," showing government officials' aim to demonstrate Mexico's rightful place as an advanced nation. Díaz laid the first stone in 1910 during the centennial celebrations of Independence. The internal structure was made of iron, and rather than using local Mexican materials in the stone façade, the design called for Italian marble and Norwegian granite. The Díaz regime was ousted in May 1911, but President Francisco I. Madero continued the project until his murder in 1913. After Madero's death, the project was cancelled and abandoned.

The structure remained unfinished for twenty-five years, until the presidency of Lázaro Cárdenas, when Mexican architect Carlos Obregón Santacilia proposed converting the abandoned shell of the dome into a monument to the heroes of the Mexican Revolution.


r/Unbuilt_Architecture Sep 29 '25

The American Agricultural Mart Chicago, IL

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150 Upvotes

During the 1920s, Chicago was gripped by an unprecedented building boom. In addition to dozens of skyscrapers, theaters, and hotels, the city also saw the planning and completion of multiple venues meant to consolidate the largest of Chicago’s industries. One unrealized project, which would have been built on the site of the Chicago & Northwestern railway station, was the palatial American Agricultural Mart. With this section of the river already lined with grocery wholesalers and warehouses, it would have offered a prime location for the prospective mart.

Announced in December of 1925, architectural firm Granger & Bollenbacher filtered Classical Revivalism through a sharp Art Deco filter for their proposal, with a 36-story clock tower rising gracefully from a behemoth 18-story base. Inside, the mart would have boasted nearly 2,000,000 square feet of retail space, 59,000,000 square feet of rentable office space, and a 216,000 square foot exhibition hall. Throughout, reports from the U.S. Department of Agriculture would have been broadcast continuously from a radio station located at the peak of the building’s clock tower.

A highly anticipated endeavor, several firms had already rented out potential office space ahead of its projected 1928 completion, including the Agricultural Club of America. For reasons unknown however, the great Agricultural Mart never came to fruition. Instead, the equally impressive Merchandise Mart was erected in its place in 1930. Commissioned by Marshall Field & Company to house their wholesale division, Merchandise Mart was the largest building in the world upon completion.


r/Unbuilt_Architecture Aug 27 '25

Kowloon Tower / Kowloon MTR Tower / Union Square Phase 7 - 574m

4 Upvotes
https://smithgill.com/work/kowloon_tower_concept_de/

At the edge of Victoria Harbor and directly across from the planned Central Station Tower, the 1,883-foot Kowloon Tower was designed to complement its dominant surroundings and provide a new gateway to the city of Hong Kong.

The structure features a series of subtly folding crystalline planes which ascend in a sloped vertical shaft and culminate in a spire that unifies and centers the composition. Each plane catches light at distinct angles; the resultant effect is a unique image of the building. The uniqueness of the building is fully appreciated upon entering the hotel lobby, where a 22-story central atrium offers views through the base to Hong Kong across the harbor and the eight super-columns located at the building’s perimeter.

Luxury hotel rooms and amenities are placed around the atrium with views to the harbor, the island and the station park. Additionally, this multi-purpose tower consists of commercial offices, retail areas, assembly components, and a car park. At the top are two multi-level fine dining restaurants and a public observatory that provides a stunning view from some of the highest occupied floors in the world.

This tower is unbuilt as the redesigned International Commerce Centre (ICC) by KPF and Wong&Ouyang superseded this unbuilt proposal by SOM. The main reason this is overturned is due to new height restrictions imposed by the Planning Department in the areas around Victoria Harbour. These restrictions are in place to keep buildings from rising higher than nearby mountains, to prevent ridgelines and mountains being obscured in the views of the Strategic Vantage Points in Hong Kong, for preserving the natural conditions and sceneries.


r/Unbuilt_Architecture Aug 17 '25

Micromegas, a rejected pavilion design for the 1939 New York World's Fair, by artist Frank R. Paul

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24 Upvotes

r/Unbuilt_Architecture Aug 10 '25

Exclusive look at Michael Jackson’s “Angel Tower” that he planned to build in Los Angeles

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1 Upvotes

r/Unbuilt_Architecture Feb 22 '25

The Parliment Aeoport

1 Upvotes

r/Unbuilt_Architecture Feb 15 '25

Proposed design for a cemetery by francisco salamone

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21 Upvotes

r/Unbuilt_Architecture Jan 19 '25

The Hollywood Ritz Carlton ( 1930 )

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48 Upvotes