Dubai, United Arab Emirates

http://travel.yahoo.com/ideas/world-s-biggest-buildings.html
The economy may be shrinking, but when it comes to architecture, big is in. Seems whenever there’s an economic downturn, buildings go to new heights. The Empire State Building went up in 1931 during the Depression. Similarly, Dubai's Burj Khalifa topped out at 2,723 feet in 2010, deep into the Great Recession. When times are tough, nothing says stability like a big, solid structure—and these new buildings often become tourism icons