Online Universities has provided a list of 100 educational virtual tours. With topics such as:
- Cities (including Pompeii and Ancient Rome)
- Famous landmarks and buildings (including Stonehenge, Taj Mahal and the Vatican)
- Museums (including the Louvre and the Smithsonian)
- Outer space
- How things are made (Toyota cars and Hershey chocolate)
- Humans and animals
- Google Earth virtual tours (Cathedrals, castles, palaces, libraries and universities) – note that you need to have Google Earth installed on your computer
There are lots of tours to choose from. Well worth a look.