Have I mentioned Google Earth yet? Surely I've mentioned Google Earth. I haven't mentioned Google Earth yet? What's wrong with me?!?
If you've got a decent connection, go and get yourself a copy and enjoy flying around the world.
Moreover, you can go to the ABC website and download their extension to turn it into an interactive flythrough and slideshow of the London Bombings.
London bombings: ABC News Map. 08/07/2005. ABC News Online
Go to it! You have nothing to lose but your download quota.