There's a free Google Earth Flight Simulator available now that you can pilot over 3D maps using a web browser.

Want to Fly? Google Earth Opens Its Secret Flight Simulator to All Users ...

Google Earth has introduced a web-based flight simulator, allowing users to explore the world from the cockpit for free. Here's how to access and use the feature.

Google has brought its long-hidden desktop flight simulator feature to the web version of Google Earth, letting anyone fly over real-world terrain directly from a browser with no download required.