Standing at twenty towers high, the Tower of London is one of the most well-known prisons in the world aside from New York’s Sing Sing Prison. Its history can be traced all the way back to 800 years ago and is known for its historical and cultural value and the riches stored in there.
The structure had been completed in 1000 A.D. Its original structure had been used as a fort by William the Conqueror. It is more than 100 feet high and has walls measuring 16 feet thick. It was built to be strong and withstand the test of time. It was regarded as the tallest building in London when its structure had been completed. During the 12th century, a king decided to have it painted in white. Thus it was given the name White Tower.