Why is the Tower of London Nicknamed White Tower?

The Tower of London is not actually nicknamed the White Tower, it is called The White Tower. It got this name because it was originally a white-painted tower. The tower was built by William the Conqueror in the 11th century and was used as a royal residence, a prison, a mint, and a record office. Today, it is a popular tourist destination and is one of the most iconic buildings in London.