The mighty river that flows through London is the River Thames. It is one of the most famous rivers in the world, measuring approximately 215 miles long and playing a crucial role in London's history and development. The Thames has been an important waterway for trade and transportation since ancient times, providing access to the North Sea. Many iconic landmarks, such as the Tower of London, the Houses of Parliament, and the London Eye, are situated along its banks. The river also hosts various recreational activities and contributes to the city's picturesque landscapes.