The Tower of London is a historic castle located on the banks of the River Thames in London. Built in the 11th century by William the Conqueror, it has served many purposes over the years, including a royal palace, prison, and treasury. Today, it is famous for housing the Crown Jewels, which are the ceremonial treasures of the British monarchy. Visitors to the Tower can explore its ancient walls and learn about its fascinating history, including tales of famous prisoners like Anne Boleyn and Sir Walter Raleigh. The Tower is also home to the iconic Yeoman Warders, commonly known as "Beefeaters," who guide tours and share stories about this remarkable landmark.