One of the saddest victims of 2008's global financial collapse-- if luxury is the mainline to your heart-strings-- may just be Dubai's unfinished underwater masterpiece: the Hydropolis. Completed, the Hydropolis would have been the world's most expensive hotel.
No need to fret just yet all you jet setters. With global warming heatin' things, there may just be a local Hydropolis near you soon. Pack your wetsuit.