A massive restoration project on the famous Leaning Tower of Pisa in Tuscany, Italy has been successfully completed by engineers.
The historic tower attracts many visitors to the small city from around the world every year and it is one of the most popular and photographed monuments.
Engineers have reduced the angle of the tower’s lean during the difficult project. They have also cleaned the exterior and some damaged pieces of stone have been replaced.
Building of the tower started in 1173 and it started to lean in 1178 when the second floor was added. The tower started to move because it is built on unstable sand and clay and the foundations are small – only 3m deep in the ground.
See the story and video about the restoration here: http://news.bbc.co.uk/2/hi/programmes/fast_track/9568633.stm