The river that runs through London is the River Thames. This iconic river flows through the heart of the city and has played a pivotal role in London's history, commerce, and culture. Spanning about 215 miles (346 kilometers), the Thames originates in the Cotswolds and empties into the North Sea. The river is lined with historical landmarks, including the Houses of Parliament, the Tower Bridge, and the London Eye. The Thames is not only vital for transportation and trade but also serves as a popular recreational area for boating, fishing, and riverside walks, enhancing the city's vibrant atmosphere.