X-Seed 4000

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The X-Seed 4000 is the tallest building ever fully envisioned.

Its proposed 4 kilometre (13,123 foot) height, 6 kilometre wide sea-base, and 800 floor capacity could accommodate five hundred thousand to one million inhabitants.

It was designed for Tokyo, Japan by the Taisei Construction Corporation as a futuristic environment combining ultra-modern living and interaction with nature.^[1]

Unlike conventional skyscrapers, the X-Seed 4000 would be required to actively protect its occupants from considerable air pressure gradations and weather fluctuations along its massive elevation. Its design calls for the use of solar power to maintain internal environmental conditions.

A sea-based location and a Mount Fuji shape are some of this building's other major design features — the real Mount Fuji is land-based and is 3.8 kilometers in height, nearly 700 feet shorter than X-Seed 4000

Some estimate that the cost to construct the X-Seed 4000 structure may be somewhere between US$300-900 billion, which is roughly half of Tokyo's nominal GDP.^[2]

[edit] See also

• Arcology
• World's tallest structures
• The Illinois
• Aeropolis 2001
• Pyramid City
• Sky City 1000

[edit] References

1. ^ http://www.emporis.com/en/cd/cm/?id=100207
2. ^ http://www.acceleratingfuture.com/michael/blog/?p=24

[edit] External links

• AcceleratingFuture.com Article
• Emporis.com Reference

v • d • e Supertall proposed skyscrapers (at least 300 meters tall)
Proposed:	175 Greenwich Street (World Trade Center Tower 3), 200 Greenwich Street (World Trade Center Tower 2), Chicago Spire, Al Burj, Signature Tower, Burj al Alam, Mubarak al-Kabir Tower , Plaza Rakyat, Russia Tower, Shard London Bridge, Emirates Park Tower 1, Emirates Park Tower 2, Elite Residence, Elite Residence, The Skyscraper, Four Seasons Dubai Festival City, AIG Main Tower, International Business Center, Lotte World II Hotel, Ice Tower, Palacio de la Bahía, Torre Central, Torre Planetarium, Suyong Bay Tower, Incheon Tower 1, Incheon Tower 2, Center of India Tower, San Francisco Transbay Tower I
Cancelled:	7 South Dearborn, Grollo Tower, Chicago World Trade Center, Project 2000, Miglin-Beitler Skyneedle, Palace of Soviets, New York Stock Exchange Tower, Television City Tower, Badriya Tower, Park Square Tower , Proposed Mixed Use Tower, 10 Columbus Circle, Larkin Building, Hotel Attraction, South Ferry Plaza, 383 Madison Avenue, 1 New York Place, Hankang City Tower, Torre Generali, Sapphire Tower, Imar Plaza, Eaton's / John Maryon Tower
Visions:	Pyramid City, Sky City 1000, The Illinois, X-Seed 4000, Aeropolis 2001, Kostabi World Trade Center, The Golden Dome Dubai, Cintas Tower