5th: Petronas Towers

The most distinctive feature in the design of this building is a hole through its peak. Originally it was meant to be a circular moon gate, but the intended design began facing protests from Chinese, who considered it too similar to the rising sun design of the Japanese flag. Eventually this was changed to a trapezoidal hole, which incidentally made it cheaper and easier to implement.Location: Shanghai, ChinaConstruction: Estimated completion 2008Height: Total 492m, Top floor 472mFloor count: 101Elevator count: 31