The Tower of London is one of the most famous fortresses in the whole world. Throughout the ages it has been used as a prison, palace, armoury, treasury and even a zoo. It is situated in Central London on the north bank of River Thames.

It was founded at the end of 1066 on an open space known as Tower Hill. In 1078 William the Conqueror expanded it by building the White Tower which gave the entire fortress its name.

During 16th and 17th centuries the castle was used as a prison. Many figures were held within its walls including Elizabeth I before she became a queen. That's how the phrase 'sent to the Tower' was born.