The Leaning Tower of Pisa, or simply the Tower of Pisa, is the campanile, or freestanding bell tower, of the cathedral of the Italian city of Pisa, known worldwide for its nearly 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, after the cathedral and the Pisa Baptistry. 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 construction in the 14th century. The height of the tower is 55.86 metres from the ground on the low side and 56.67 metres on the high side.
Unesco: Piazza del Duomo, Pisa
RR: December Alternative RR
Date: Dec 6
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