The World's Tallest Round Building

The 'Guangzhou Yuan' is the tallest round building in the world, designed by Italian architect Joseph di Pasquale. The gigantic 'donut', with a height of 138 meters, is located by a city river in Guangzhou and symbolizes traditional Chinese coins. It has 33 floors with a 48-meter hole in the center, and inside are various offices, including the world's largest plastic trading floor.