There's plenty to sit through, along with a larger exhibit put together by the Google Arts & Culture team. The site is essentially a hub for Google's various exhibits -- each section is like a miniature museum, containing high-res photographs of important places, documents and artefacts.

While both websites are suitable for the classroom, teachers in the US might want to try a "Hidden Worlds Expedition" instead. They're designed for the Expeditions app -- a two-pronged approach to virtual school trips. While the children look around with Google Cardboard headsets, the teacher can give a running commentary using a fact sheet accessible from their smartphone or tablet. Together, it's hoped that these resources can get people interested in the great outdoors, and appreciate what the National Parks Service is fighting to preserve on a daily basis.