The world's tallest buildings

Since its completion in January 2010, the tallest building in the world has been the Burj Khalifa in Dubai, United Arab Emirates. However, the building called Kingdom Tower, proposed in , Jeddah, Saudi Arabia, is expected to be built from 2012 to 2018 and would move Burj Khalifa to the second place spot. Kingdom Tower is expected to be the world's first building that is taller than a kilometre (1000 meters or 3281 feet).

Thus, this list is extremely dynamic and by 2017, the world's current second tallest building, Taipei 101, is expected to be around the 20th tallest building in the world due to numerous tall buildings being constructed in China, South Korea, and Saudi Arabia.

Here is the current official list (as of January 2012) of the 18 tallest buildings in the world, as recorded by the Council on Tall Buildings and Urban Habitat, based in Chicago.

1.World's Tallest Building: Burj Khalifa in Dubai, United Arab Emirates. Completed in January 2010 with 160 stories which reach 2,716 feet (828 metres) high!

2. Asia's Tallest Building: Taipei 101 in Taipei, Taiwan. Completed in 2004 with 101 stories and a height of 1667 feet (508 metres).

3. China's Tallest Building: Shanghai World Financial Center in Shanghai, China. Completed in 2008 with 101 stories and a height of 1614 feet (492 metres).

4. International Commerce Centre in Hong Kong, China. The International Commerce Centre was completed in 2010 with 108 storeys and a height of 1588 feet (484 metres).

5 and 6 (tie). Formerly the world's tallest buildings and known for their distinctive appearance, the Petronas Tower 1 and Petronas Tower 2 in Kuala Lumpur, Malaysia have gradually been moved down the list of the world's tallest buildings. The Pertonas Towers were completed in 1998 with 88 storeys and are each 1483 feet (452 metres) tall.

- Internet