The 3D technology for maps allows you to virtually fly around your city.
Yell.com’s 3D Maps service has been designed to make Yell the natural online destination for customers searching for local businesses – in exactly the same way they might use the Yellow Pages directory.
I have used their 3d maps to virtually visit London. It is very interesting because you can see different angles of famous objectives such as: Buckingham Palace, British Museum, London Science Museum.
Also I have enjoyed a virtual walk in the Hyde Park and Kensington Gardens.
You can see a short video about how 3d Maps work at http://video.yell.com.