The Shanghai Tower (Chinese: 上海中心大厦; pinyin: Shànghǎi Zhōngxīn Dàshà; Shanghainese: Zånhe Tsonshin Dasa; literally: "Shanghai Centre Tower") is a 632-metre (2,073 ft), 128-story megatall skyscraper in Lujiazui, Pudong, Shanghai.[9]. It also has the world's highest observation deck within a building or structure (Level 121, 561.25 m),[10] and the world's fastest elevators at a top speed of nearly 46 miles per hour (74km/h).[11][12] It is the world's second-tallest building by height to architectural top (behind Dubai's Burj Khalifa, 828 m). Designed by international design firm Gensler and owned by the Shanghai city government,[2] it is the tallest of the world's first triple-adjacent super-tall buildings in Pudong, the other two being the Jin Mao Tower and the Shanghai World Financial Centre. Its tiered construction, designed for high energy efficiency, provides nine separate zones divided between office, retail and leisure use.[ (thetvdb.com)