Architect David Fisher is building a "dynamic" skyscraper. Every floor can rotate independently of the other floors, and if you're wealthy enough to own one of these floors you can control the speed and direction of rotation by touch or voice command. Each floor can rotate at a maximum speed of 1 complete rotation per 90 minutes (I feel sick already). Also you can drive your car into an elevator and have it carried up to your apartment. Fancy.
This building is also an eco-innovation. It generates its own electricity via wind turbines between the floors and solar panels on the roof. It will even generate enough electricity to power other buildings!
The first skyscraper built in Dubai is supposed to be finished later this year, while the Dynamic Architecture website proposes more be built in London, Paris, New York, and Moscow. I'm a little unclear as to whether these projects are really underway or if they're just a dream.
This shows some different possible configurations of the buildings. I imagine it would really look like the third picture once everyone starts the rotating, but I wonder if sometimes they will lose control of their rotations so that the building can look awesome.