Here is a fun one! Don Bain's Virtual Guidebooks: "This site features over 5000 of my VR panoramas. These amazing photographs show you exactly what it is like to be in a particular spot - you can look in any direction, all the way around. It's the next best thing to being there." You can navigate within each 360 view and even zoom with some intuitive controls.
This is a great way to get a feel for places across the American west. These VR panoramas could be useful to the historian seeking that elusive sense of place, or to anyone planning a trip, or for a home sick north westerner stuck in Missouri (as a random example). For a quick tour of the northwest check out Fog in the Straits of Juan de Fuca, Diablo Lake Overlook, Silver Falls State Park, and Wheatlands Near Almota, Washington. Or make your own tour--you have 5000 destinations from which to choose.
(You know what would make these really cool? If they were embedded in Google Earth!)