The
River Thames in
London at sunset, with the
Tower Bridge and London skyline in the background. While best known because its lower reaches flow through central London, the Thames flows 215 miles (346 km) across southern
England. The river gives its name to the
Thames Valley, a region of England centred around the river between
Oxford and west London, the
Thames Gateway, the area centred around the tidal Thames, and the
Thames Estuary to the east of London.
Photo credit: David Iliff