Devil’s Corkscrews
In the late 19th century, Nebraska's settlers came across bizarre, giant “stone screws” vertically embedded in the ground. The big ones could be 2 meters long in a near-perfect spiral.…
In the late 19th century, Nebraska's settlers came across bizarre, giant “stone screws” vertically embedded in the ground. The big ones could be 2 meters long in a near-perfect spiral.…