Tallest Skyscrapers in the World (3D Size Comparison)

From a tower that has the largest clock on Earth, to a building so mind-bogglingly tall it holds 7 world records, here is a 3D comparison of the tallest skyscrapers on the planet. To top things off we will also feature 3 proposed skyscrapers over 1,000 meters that could claim that title in the near future.