As part of the Cultural Institute, Google has a section called “Art Project”
You can go to the Google Art Project and search for a museum which has a yellow person icon in collections and you can visit the museum online! It’s great to provide a virtual tour of a museum to your students!
You can sign up and make your own galleries and compare art pieces.
World wonders: you can search for coral reefs for instance and you can explore as if you were there, a sort of online trip since you cannot always go on many trips.
Historic moments: timeline with visuals about an historic moments. So you read the story and see original photos, it’s well done.