Google Earth's massive update adds 3D maps and interactive guided tours of our planet. A new massive update to Google Earth adds interactive 3d tours of the most beautiful places on the planet, and permits exploration of the globe from a computer screen. If you haven't checked it out lately, be prepared for a revelation. While it isn't as good as being there, it is certainly the next best thing. Want to see the Grand Canyon in 3 dimensions? Want to tour France? No more flat two dimensional photos. Let's go on a trip.