What are some reasons to love London England?

Answer:
From Big Ben and Picadilly Circus (!) to their (four) World Heritage Sites and the London Underground (a railway) London has many popular attractions for the world's tourists, especially those visiting for the upcoming 2012 Summer Olympics (27 July to 12 August).
First answer by LeastDuck. Last edit by LeastDuck. Contributor trust: 695 [recommend contributor recommended]. Question popularity: 2 [recommend question].