This is so cool: Google Earth (download) has a slightly hidden flight simulator. Press Ctrl-Alt-A (on a PC) to bring it up the first time. After that, Ctrl-A or a selection from the "Tools" menu activates it.
It's no Microsoft Flight Simulator in terms of controls, flyability, or features (no sound, no weather, no autopilot, only two aircraft choices... I could go on), but since the Google flight simulator has access to Google Earth's streaming database, the visuals are awesome. In most areas, it looks fantastic when your plane is more than about 2,000 feet above ground level. Get down low and it becomes a lot less believable, except in cities with good 3D building coverage.
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