Since it formed millions of years ago, this cave system has been a sacred burial ground, a Prohibition-era speakeasy, and the center of an amusement park.

In Rickwood Caverns, visitors can travel hundreds of feet underground and see beautiful formations unique to the region.

This 880-acre facility is home to a massive collection of vintage motorcycles and cars, as well as a 2.38-mile race course.

Once one of the largest producers of pig iron in the world.