The Burj Khalifa in Dubai is the tallest man-made structure in the world, but it would be dwarfed by the Tokyo Tower of Babel ...

There are some truly impressive infrastructure projects across the world that have been completed in the last two decades.

From a tower with the largest clock on Earth to a mind-bogglingly tall building that holds 7 world records, this video presents a 3D comparison of the tallest skyscrapers on the planet. It features ...