Shanghai Tower is the world's third-tallest structure behind a building that reached its full height in which year ?
Shanghai Tower The Shanghai Tower () is a 632 m , 128-story megatall skyscraper in Lujiazui, Pudong, Shanghai. As of 2015, it is the world's tallest building, by height to highest usable floor (Level 127, 587.4 m). It also has the world's highest observation deck within a building or structure (Level 121, 561.25 m), and the world's fastest elevators at a top speed of 20.5 m/s (74 km/h; 46 mph ). It is the world's second-tallest building by height to architectural top (behind Dubai's Burj Khalifa, 828 m) and the world's third-tallest structure (behind Tokyo Skytree, 634 m).
Tianjin Radio and Television Tower The Tianjin Radio and Television Tower is a 415.2 m tower in Tianjin, China used primarily for communication. It is the 8th tallest freestanding tower in the world. It was built in 1991 at a cost of $45 million. Approximately two-thirds up the tower is an observation pod with 253 m2 of floor space (used mostly for communication equipment). It is a member of the World Federation of Great Towers.