Why was the Leaning Tower of Pisa built? Construction of the Leaning Tower of Pisa began in 1173 as the third and final structure of the city of Pisa’s cathedral complex. In particular, it was built to serve as the complex’s bell tower.
Did they build the Leaning Tower of Pisa leaning?
The tower started to lean during construction because the foundation was built on soft ground that had difficulty supporting the weight. The lean became worse as construction continued for several decades. Between 1990 and 2001 it was stabilized and the lean was partially fixed.