Pisa Tower vs Macau Tower

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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

Informations

Macau Tower Convention & Entertainment Centre (Chinese: ???????????; Portuguese: Centro de Convenções e Entretenimento da Torre de Macau), also called Macau Tower (Chinese: ???; Jyutping: ou3 mun4*two taap3; Portuguese: Torre de Macau), is a tower located in Sé, Macau. The tower measures 338 m (1,109 ft) in height from ground level to the maximum point. Its observation deck includes views, restaurants, theatres, shopping malls and the Skywalk X, a walking tour around the outer rim. It offers the best view of Macau and lately has been used for a variety of adventurous activities. At 233 metres, the Macau Tower's tethered'skyjump' and Bungee jump by AJ Hackett in the tower's outer rim, is the highest commercial skyjump on earth (233 metres), and the second highest commercial decelerator descent facility in the world, after Vegas' Stratosphere skyjump at 252 metres.The tower was created by Moller Architects and is one of the members of the World Federation of Great Towers. Beyond observation and amusement, the tower can also be used for telecommunications and broadcasting. The Grand Lisboa hotel are the most recognizable landmarks in the Macau skyline.

Source: Wikipedia