In the constant race to the top, people have built taller, better, grander buildings up, up into the clouds. Each new building shoots up out of the ground at increasingly dizzying heights; right now, the Burj Khalifa tower in Dubai is number one, but with constant building going on all over the world, it won't be for long.

Press Start for a look at the top 10 tallest buildings in the world in 2011.

Taipei 101- Taipei, Taiwan
Height- 508 meters (1,666.6 ft) Floors- 101 Completed- 2004 Materials used: -steel -glass Building Type: - office - communication - conference - library - observation - restaurant - retail - fitness center REUTERS
Shanghai World Financial Center- Shanghai, China
Height- 492 meters (1,614.2 ft) Floors- 101 Completed- 2008 Materials Used: - glass - steel - concrete Building Type: - conference - hotel - museum - observation - office - parking garage - retail REUTERS
International Commerce Center- Hong Kong, China
Height- 484 meters (1587.9 ft) Floors- 108 Completed-2010 Materials Used: -glass -steel Building Type: - hotel - observation - office - parking garage - retail thewondrous.com
Willis Tower- Chicago, United States
Height- 527.3 meters (1729.9 ft) Floors- 108 Completed- 1974 Materials Used: - glass - steel - aluminium - concrete Building Type: - office - communication - observation REUTERS
Trump International Hotel Tower- Chicago, United States
Height- 423.4 meters (1,389.1 ft) Floors- 98 Completed- 2009 Materials Used: - glass - steel - concrete Building Type: - hotel - parking garage - residential - retail - fitness center REUTERS
China China Dubai Dubai