The Analemma Tower is conceived as the world’s tallest building. Unlike any skyscraper built before, it would not rise from a foundation on Earth. Instead, it would be suspended from an asteroid placed in geosynchronous orbit approximately 50,000 kilometers (31,000 miles) above Earth.

It's designed by the New York-based “interdisciplinary firm” Clouds Architecture Office (Clouds AO). The Analemma Tower is just a speculative architectural concept, but I can visualise it happening in about 100-200 years from now.

What do you say?