Las Vegas: All that money, and they use it unpredictably to do amazing or super-cheesy things (sometimes both at the same time).
Amazing: http://en.wikipedia.org/wiki/The_Crystals_%28Las_Vegas%29 (designed by Daniel Libeskind of Berlin Jewish Museum fame!).
Also amazing: http://en.wikipedia.org/wiki/Aria_Resort_%26_Casino (the largest hotel to receive LEED gold certification)
More cheesy, less amazing part of Aria:
