The Leaning Tower of Pisa

The Tower of Pisa is one of the most beautiful bell towers in Italy. It is not only beautiful, but also strange—it leans to one side. Today it is known as "the Leaning Tower of Pisa".

The building of the tower began in 1173. It took nearly 200 years to complete. In 1178, when the building got to the third floor, it started to lean. The builders tried to make the tower straight again when they built the upper floors, but failed.

Over the years, the tower has continued to lean further. Experts have done a lot of studies and tried to "rescue" the tower. In 1990, it was closed to the public for safety reasons. After a lot of effort, it reopened in 2001. Hopefully it will be safe for at least the next 300 years.

Grammar

A Proper nouns

B Conjunctions: and, but and so