London is the capital city of the United Kingdom located in southeast England, formed by the ancient cities of London and Westminster and home to over 9 million people, making it one of the most densely populated cities in the world. Some of London's most notable landmarks include Big Ben, the Palace of Westminster, the Tower of London, Maritime Greenwich, Kew Gardens, the Thames River, the London Eye Ferris wheel, the London Underground subway system, the Canary Wharf Tower, Buckingham Palace, and Windsor Castle.

1. Interesting Facts About London

2. London stands on the southeast of England and is the capital city of United Kingdom.

3. London is the most densely populated area in Britain and is the ninth largest city in the world.

4. London is formed by two ancient cities - City of London and City of Westminster, both cities forming the region of Greater London.

5. During the time of the Roman Invasion, London was known as Londinium. In Saxon times, it was known as Lundenwic and during the kingdom of Alfred the Great, its name was changed to Lundenburg.

6. Contrary to what many people believe, ‘Big Ben’in Londonis not the name of the clock or the tower, but a 13-ton bell inside the clock. The tower is known as St. Stephen’s Tower.

7. The city of London is home to four World Heritage Sites - the Palace of Westminster (Houses of Parliament)

8. The Tower of London

9. Maritime Greenwich

10. Kew Botanical Gardens .

11. Thames River in London is the longest river in England. It begins life as a trickle in a Gloucestershire meadow and flows for more than 135 miles, before reaching London.

12. The London Eye or Millennium Wheel of the city is the tallest Ferris wheel in Europe.

13. The London Underground, built in 1863, and popularly called ‘Tube’, is the first metro of the world.

14. The Canary Wharf Tower is the tallest building in London.

15. Buckingham Palace, The Queen’s official residence built in 1702, was earlier the site of an infamous brothel.

16. Windsor Castle of London is the largest and oldest castle of the world that is still in use.