UK-based Chetwood Architects just unveiled plans for the Phoenix Towers in Wuhan, China, which will be the world's tallest pair of skyscrapers upon completion. The supertall structures are the centerpiece of the firm's four master plans slated for co...

Apparently Phoenix isn't well-known enough, because developers want to put it on the map with a giant pin-shaped observation tower. Designed by BIG, the Pin is a 128 meters tall tower topped with a giant ball and spiraling exhibition and recreation s...