Use Google, and search the world!
Google has recently acquired Keyhole Corp. Apparently, Keyhole is the only company to deliver a 3D digital model of the entire earth via the internet. They have pioneered the EarthStream technology that combines advanced 3D graphics and network streaming innovations to produce a high performance system that runs on standard PC’s and commodity servers.
Now imagine this.
Fire up Google. Type - "Anna Nagar, Madras" and it throws up a satellite digital image of the place and allows you to zoom to street level.
Thought this happened only in the movies (Enemy of the State) ??