The formation of the Great Lakes is the result of numerous geological events, the most recent of which involved massive Ice Age glaciers.

Only four of the Boston Harbor drumlin islands, Deer Island, Nut Island, World's End and Webb Memorial, are accessible by car ...

An alternative to dredging aims to capture moving sand to protect the archipelago from erosion and rising seas.

Check out 24 of the world’s must unusual landscapes — from the hellish Darvaza Gas Crater in Turkmenistan to the “snow ...