The Leaning Tower of Pisa

The Leaning Tower of Pisa - The 14,500 ton, 8 story Bell Tower was begun in 1173. Ten years later construction was halted (at 3 stories) because it was already visibly leaning. From 1275-1284 a second architect slightly altered the angle and added to the building , only to stop after 7 stories because the lean worsened. Finally in the mid 14th Century the belfry was added making the tower 180 feet high.