Google Earth Flight Simulator
If you download the most recent version of Google Earth and press Ctrl+Alt+A it will open up a flight simulator. You can select from two different planes and take off from several locations including San Francisco, Switzerland, and the Himalayas. You can also start your flight at a specific location if you go there in Google Earth outside of the flight simulator, and then select the "start at current view" button which is above the airport selection box. The controls can be found by going to help and then clicking on keyboard shortcuts. It's a lot of fun and has pretty good resolution. The pics are of the Himalayas. The start-up screen with the options, Switzerland, New Zealand, and upside down over Washington D.C.