Located deep in the vast northern tundra, the Frozen Field is an expansive array of large glaciers which have run aground. These are slippery peaks, but if you can manage to reach the top the view is incredible. Various creatures have created natural pathways leading to the top, but they are precarious at best. If you’re not willing to brave the climb to the top, there are some surprisingly deep caves that can be found at the base of some glaciers. Their walls are smooth to touch and some are as clear as glass. If the sun hits a cave interior just right, you may be able to peer straight inside to the fossils and bones trapped within.