In this architectural rendering released on Thursday, Nov. 27, 2008, by San Francisco-based Gensler Architecture, Design and Planning Worldwide via Color China Photo, shown is the Shanghai Tower. On Saturday, Shanghai officially begins work on its next tallest skyscraper, a 632-meter (2,073- foot) tower in the city’s Lujiazui financial center that will tower over the current highest building, the recently completed 492-meter (1,614-foot) Shanghai World Financial Center. (AP Photo/Gensler Architecture, Design and Planning Worldwide via Color China Photo) ** CHINA OUT ** China Shanghai Tallest Building China Shanghai Tallest Building