It was there already. London was built around the river.
The river Thames is England, and is the river that London is built on.
Yes, you can use the Thames River Cruise London Pass for a scenic boat tour along the Thames River in London.
They were built at the south of the River Thames.
London
it was built in London, England over the Thames river
The Thames is a river flowing across London, Great Britain.
Thames
Thames
The only railway under the river Thames is parts of the London Underground (tube).
The River Thames is the major river through London, cutting right through the middle of the city. There are many other rivers in London, such as the River Lee (or Lea) and the River Brent.
London isn't, but it is at the beginning of the Thames estuary.