Guangzhou International Finance Center, New Town, Guangzhou, China

The IFC garnerer RIBA's 2012 Lubetkin prize for best new building outside Europe.  The internal skeleton is composed of concrete-filled steel tubes arranged to form a patterned grid of 12-storey high diamonds, which minimizes steel tonnage.  Designed by London-based Wilkinson Eyre, it opened in 2008 and has 103 floors, houses the Four Seasons Hotel, and tops out at 1,439 ft.  To the East is it's twin, the 111-storey Chow Tai Fook Centre at 1,740 ft.