AirPano is a fantastic site for viewing gorgeous 360 degree imagery of dozens of famous landmarks and cities all over the world. I initially reviewed the site a couple of years ago. Recently, I noticed that AirPano has added some new features to go along with an expansion of their galleries. 

Much of the AirPano imagery now includes interactive pinmarks that you can click to learn more about the places you're seeing in the AirPano imagery. For example, if you visit theAirPano imagery of Petra you can click the pinmarks to learn about the construction of Petra and the significance of various carvings seen throughout the virtual tour. 

AirPano now offers videos along with 360 degree imagery. The videos aren't interactive like the pictures are, but they do provide a great visual overview of cities and landscapes. 

Applications for Education 
Using AirPano imagery for virtual tours could be a good way for students to explore the places they're reading about in a social studies lesson or places they've read about during a literature lesson. AirPano imagery is available in a variety of resolutions to accommodate visitors using slower Internet connections and visitors using the site on iPads or Android tablets.