It's a new and exciting way of looking at the London Underground. For the past year Peter Smart and Robin Hawkes have been working on a 3D map that brings cities to life using the power of open data and the Web.
The designers of the ViziCities, started the project because they wanted to see what public transport looked like in real-time and 3D. Partly because they expected it to look amazing, but mostly because they believed it was exactly the kind of thing that will help bring cities to life.
The pair decided on 3D because they felt it was a visually interesting way of looking at a city.
Another reason why Smart and Hawkes chose 3D is that it allows the viewer to see cities in a way that they're used to.