The craziest rock formation in America

Turnip Rock, a rock island formation just off the shores of Lake Huron, was shaped by thousands of years of erosion from storm waves. It got its name from its unusual turnip-like shape and the vegetation sprouting from the top of the structure.

Few people actually know that the rock island exists on Lake Huron because of its limited accessibility. The land around it is private property, so the only way to access it is by boat -- except in the winter when the lake is frozen.

Another crazy rock formation resides in Colorado Springs. The "Garden of the Gods" is decorated with pink, white, and deep red rock formations. They each tell a story as evidence of ancient seas and sand dune fields, and both are visible on the rock's exterior. The Pleistocene Age brought erosion and glaciations that molded the rocks into nearly every shape and size imaginable.

More than two million visitors each year enjoy mountain biking, rock climbing, hiking and horseback riding at the site.