Japan Plan For World's Tallest Building

Inspired by Mount Fuji, Taisei Construction Corporation has completed designs for construction of the world's tallest building. The X-Seed 4000 (no idea where that came from) would stand at approximately 13,123 feet (4 km), nearly 700 feet (213 m) taller than the real Mount Fuji. The next tallest buildings don't even break 2,000 feet, how puny! While likely to never be built, the X-Seed would have up to 800 floors, and be capable of housing between 500,000 and 1,000,000 people.