Metal sculpture folk art lining the Kansas Highway.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

Built by prisoners of war, the largest small-scale model ever built includes eight miles of tiny streams that now sit abandoned.

Large tower used for simulating radiation of Hiroshima bomb and the tallest object ever relocated.

The oldest bridge in South Carolina may have been designed by the same man who created the Washington Monument.