Suzhou Tiger Hill Tower is a well-known ancient tower building at home and abroad. It was built in 959 AD and completed in 961. The tower has seven levels and eight sides, brick body and wooden eaves. It is the representative work of the brick tower in the Yangtze River valley in the tenth century. The tower is now 47.7 meters tall. The Tiger Hill Tower is a leaning tower, known as the "Eastern Leaning Tower of Pisa". It is the second leaning tower in the world; it was built more than 200 years earlier than the Leaning Tower of Pisa in Italy.