
Each of the 80 floors in the world's first moving skyscraper with offices and a hotel, topped by apartments will rotate 360 degrees, all at different speeds. Designed by Italian architect David Fisher and located in Dubai (another is planned for Moscow), the prefab, wind-powered tower will cost an estimated $700 million. The residences will sell for $3.7 million to $36 million. The building should be completed in 2010.
View the full list for "TIME's Best Inventions of 2008"Which gadget is most useful or influential? Browse the nominees and cast your vote.
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