The Ultima Tower was a
hypothetical supertall skyscraper
A skyscraper is a tall continuously habitable building having multiple floors. Modern sources currently define skyscrapers as being at least or in height, though there is no universally accepted definition. Skyscrapers are very tall high-ris ...
, conceptualized and designed by American architect
Eugene Tsui
Eugene Tssui ( born Eugene Tsui, September 14, 1954)
Eugene Tsui, ''Evolutionary Architecture: Nature as a Basis for Design'' (John Wiley & Sons, 1999), . is an American architect noted for his use of ecological principles and "biologic" desig ...
in 1991. It has been envisioned to be built in
San Francisco, California
San Francisco (; Spanish for " Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the fourth most populous in California and 17th ...
and could accommodate up to one million people. With a total height of , the tower would be tall, and comprise 500 stories if built. It is one of the tallest buildings/man-made structures ever conceived.
References
External links
The "Ultima" Tower, Two-mile High Sky City{{Supertall proposed skyscrapers
Unbuilt buildings and structures in the United States
Proposed skyscrapers in the United States
Unbuilt skyscrapers