I have used EveryScape to create an exceptional virtual tour for one of my clients. What makes EveryScape different from other virtual experiences is that their platform creates three-dimensional, photo-realistic experiences of cities and towns, building interiors and exteriors, and street scapes. You can enter a Museum, for instance, tour the galleries, the dining spaces, and the gift shop to get a real sense of the place before you visit. You can even tour an entire town. Here's a view of historic Lexington, MA.
EveryScape just announced the availability of "branded" Mini WebScapes for clients that use the photos from their tour. These site-specific tours can be integrated right into the client's web site. I think it will make a smashing impression on potential visitors and customers. Here's a tour of Harvard's Natural History Museum.