In case you missed last weekend's multipage ad extravaganza in the New York Times Magazine, Dubai is undergoing a huge building boom, including the construction of multiple dentrite-like islands and a new "land of opportunity" marketing tagline. According to this site, Dubai is said to have 15 to 25% of the world's cranes and the world's largest man-made islands (viewable from space).
The world's tallest hotel, Burj al-Arab hotel, is apparently considered the world's first "7 star hotel."
Then there's Hydropolis, "the world's first underwater hotel. Entirely built in Germany and then assembled in Dubai, it is scheduled to be completed by the end of 2006."