Check out this very cool demonstration of Liquid Galaxy. Using eight 1080p HD displays, connected to eight powerful quad-core computers, a 3D mouse, and the already remarkable Google Earth, users can take an unprecedented self-guided, simulated tour of our planet. This amazing set-up can transport you from Paris to Google headquarters in California, or from outer space to beneath Earth’s oceans in a matter of seconds. All in three dimensions, and with a nearly 360° view.

Want one for your media room but don't think you can afford it? No problem - you can now build one yourself because Liquid Galaxy has gone open source. Here's a website that will get you started. Want to delve deeper? Go here.