If you visit central London in new Google Maps on your Desktop Computer, you will find that you can now explore central London reconstructed in 3D. You're able to chose from multiple angles to explore the capital and can check all those famous landmarks in a fantastic new way.
Here are a few shortcuts to some well known locations to get you started, have fun exploring!
Tower Bridge & Tower of London: http://goo.gl/1tBf6u
The Shard: http://goo.gl/x1l8kA
London Eye: http://goo.gl/m50Inl
St Pauls Cathedral: http://goo.gl/SIDPsr
Palace of Westminster: http://goo.gl/zai7JP
Buckingham Palace: http://goo.gl/rJMnwZ
Shakespeare's Globe Theatre: http://goo.gl/Nko2KN
The British Museum: http://goo.gl/r5JaGH
Trafalger Square: http://goo.gl/Wwe1Qq
Picadilly Circus: http://goo.gl/cgRndH
The O2: http://goo.gl/QB7SkS
Canary Wharf: http://goo.gl/d3zDOj