Water Tower

The Water Tower is a 14th-century tower in Chester, Cheshire, England, which is attached by a spur wall to Bonewaldesthorne's Tower on the city walls. The tower, together with its spur wall, is recorded in the National Heritage List for England as a designated Grade I listed building. The original name of the tower was New Tower but in the 17th century it became known as the Water Tower, although the City Assembly tried to insist on the usage of its correct name.

Source: Wikipedia