Which river flows through London and under Tower Bridge?

Which river flows through London and under Tower Bridge? The answer is the Thames.

The River Thames is London’s defining waterway, flowing beneath Tower Bridge in the city’s historic eastern centre. The bridge links Tower Hamlets on the north bank with Southwark on the south bank, close to the Tower of London and the Pool of London, the traditional harbour area.

Tower Bridge opened in 1894 and was designed as a bascule bridge, meaning its central sections can lift to let tall vessels pass. The Thames is tidal through London, so the river’s water level rises and falls with the North Sea. Farther upstream, the river becomes non-tidal and passes through towns including Oxford and Reading.

A frequent mix-up is London Bridge, which is a different crossing upstream from Tower Bridge. The Thames also passes landmarks such as the Houses of Parliament, the London Eye and Greenwich before widening into its estuary toward the North Sea.