The Capital of the world. Unlike New York the Tube stations here are clearly signposted. Unlike New York the streets are all squigley and it is really really old. South of the river Thames, is a mythical land that those on the North talk about in nervous whispers, but it actually isn't that bad and is fast becoming the only place in the city besides cardboard boxes that is affordable to live in.
Go on the London eye but don't visit the London Dungeons. Go shopping on Portabello road, or in Camden, not in Covent Garden. Go to the opera in Regent's park, and to speaker's corner in Hyde park on a sunday afternoon. Trafalger Square in the evening, Leicester square at mid-day. Karl Marx and Charles Dickens are buried in Highgate cemetary.
All of life is there.
English person: Have you been to the U.K. before?
Foreigner: Oh yes, I've been to London five times on holiday.
English person: Anywhere else?
Foreigner: No, there's nothing worth seeing outside the M25, it's just a barren wasteland
English person: Ignorant fool. DIE NOW! *pulls out knife and stabs repeatedly*