Everytime I am in Dubai, it looks like a different city due to its continuous growth. Over time large cities tend to take on an aura... yet, this may be the first time in the history of mega-cities that the view of the skyline of a city will continue to morph, not due to its growth but due to "dynamic architecture".
See here the video of the world's first 80 story rotating tower to be built by Florentine architect Dr. David Fisher in Dubai. You can see Dr. Fisher's dynamic architecture details here. Dubai also plans to become an exporter of the pre-fabricated rotating towers to the rest of the world.
See more videoes on YouTube.com of Dubai's "dynamic architecture" here.