South Korea's Tower Infinity Aspires To Be World's First 'Invisible' Tower

For the last few decades, countries all over the world have been trying to outdo each other at building the world's tallest structures. Now South Korea wants to raise the stakes further with Tower Infinity, which at a height of 1,476 feet (450 meters) will not only be the sixth tallest, but also, the world's first 'invisible' tower.