X-Seed 4000

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

Its proposed 4 kilometre (13,000 foot) height, 6 kilometre wide sea-base, and 800 floor capacity could accommodate 500 thousand to 1 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.

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 a mere 3.8 kilometers in height.

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

See also

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

External links

• [AcceleratingFuture.com Article]
• [Emporis.com Reference]

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