What is the population of London?
Answer: The population of London is approximately 8.9 million people.

What famous river runs through London?
Answer: The River Thames runs through London.

What are some of the major attractions in London?
Answer: Some major attractions in London include the Tower of London, Buckingham Palace, the London Eye, and Big Ben.

What is the currency used in London?
Answer: The currency used in London is the British Pound Sterling.

What is the London Underground?
Answer: The London Underground, also known as the Tube, is a public transportation system that serves London and its surrounding areas. It is one of the oldest and largest underground railway networks in the world.