Leaning Tower of Pisa

The Leaning Tower of Pisa (Italian: Torre pendente di Pisa or simply La Torre di Pisa) is the campanile, or bell tower, of the cathedral of the Italian city of Pisa. It is situated behind the Cathedral and it is the third structure in Pisa's Campo dei Miracoli (field of Miracles).

The tower is famous for its noticeable lean. It was intended to stand vertically so as to serve as a bell tower, but began leaning soon after construction started in 1173 due to a poorly laid foundation.

The height of the tower is 55.86 m (183.27 ft) from the ground on the lowest side and 56.70 m (186.02 ft) on the highest side. The width of the walls at the base is 4.09 m (13.42 ft) and at the top 2.48 m (8.14 ft). Its weight is estimated at 14,500 tonnes. The tower has 294 steps.

Geographic coordinates: 43.7231° N 10.3964° E
Elevation of Piazza dei Miracoli: about 2 metres (6 feet, DMS)
Height: 55.863 metres (183 ft 3 in), 8 stories
Outer diameter of base: 15.484 m
Inner diameter of base: 7.368 m
Weight: 14,700 tonnes
Thickness of walls at the base: 8 ft (2.4 m)
Total number of bells: 7, tuned to musical scale, clockwise
1st bell: L'assunta, cast in 1654 by Giovanni Pietro Orlandi, weight 3,620 kg (7,981 lb)
2nd bell: il Crocifisso, cast in 1572 by Vincenzo Possenti, weight 2,462 kg (5,428 lb)
3rd bell: San Ranieri, cast in 1719-21 by Giovanni Andrea Moreni, weight 1,448 kg (3,192 lb)
4th bell: La Terza (1st small one), cast in 1473, weight 300 kg (661 lb)
5th bell: La Pasquereccia, cast in 1262 by Lotteringo, weight 1,014 kg (2,235 lb)
6th bell: il Vespruccio (2nd small one), cast in the fourteenth century and again in 1501 by Nicola di Jacopo, weight 1,000 kg (2,205 lb)
7th bell: Del Pozzetto, cast in 1606, weight 652 kg (1,437 lb)
Steps to bell tower: 294