You can play with this one for a long time.
U.S. Air Force Museum (Full name: National Museum of the U. S. Air Force)
Click on the MAP in the upper right hand corner to bring down a visual menu of the different sites within the museum, then click on a dot within that site to view the exhibits from that camera angle and then follow (click on) the arrows.
You can run your mouse over the aircraft and it can tell you what it is and in some cases you can click it and find out even more on the plane.
Clicking the button with 4 arrows coming in from the corners puts you into full screen mode. "Esc" will bring you back.
WARNING: Time flies when you get immersed in this tour!
http://www.nmusafvirtualtour.com/full/tour-pkg.html
