Pisa Tower vs Tianjin World Financial Center

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The Leaning Tower of Pisa (Italian: Torre pendente di Pisa) or simply the Tower of Pisa (Torre di Pisa [?torre di ?pi?za]) is the campanile, or freestanding bell tower, of the cathedral of this Italian city of Pisa, known globally for its almost four-degree lean, the result of an unstable foundation. The tower is situated behind the Pisa Cathedral and is the third-oldest structure in the city's Cathedral Square (Piazza del Duomo), following the palace and the Pisa Baptistry. The height of this tower is 55.86 metres (183.27 feet) from the ground on the low side and 56.67 metres (185.93 feet) on the high side.

The width of the walls at the base is 2.44 m (8 feet 0.06 in). Its weight is estimated at 14,500 metric tons (16,000 short tons). The tower has 296 or 294 steps; the seventh floor has two fewer steps on the north-facing staircase. The tower began to lean during construction in the 12th century, due to soft ground which could not properly support the structure's weight, and it worsened through the completion of building in the 14th century. By 1990, the tilt had reached 5.5 degrees. The structure was stabilized by remedial work between 1993 and 2001, which decreased the tilt to 3.97 degrees.

Source: Wikipedia

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The Tianjin Tower, or Jin Tower (Chinese: ??; pinyin: J?nt?), or Tianjin World Financial Center (Chinese: ????????; pinyin: Ti?nj?n Huánqiú J?nróng Zh?ngx?n) is a Contemporary supertall skyscraper located in the Heping District of Tianjin, China, on the banks of the Hai River.

The mixed-use tower is 336.9 meters (1,105 ft) tall and contains 74 floors above ground and 4 below, with an observation deck in 305.2 meters (1,001 ft). The region of the glass unitized curtain wall, manufactured by Jangho Group, is 215,000m². It's notable as the first office building in Tianjin to be equipped with double decker elevators.The skyscraper was topped-out on January 14, 2010 and opened in 2011. The building is owned by Financial Street Holding, with JLL (company) as joint sales and leasing agents.

Source: Wikipedia