Madison Seminary, Madison, Ohio

Eureka Café and  old mining tunnels, Eureka, Nevada

West Virginia Penitentiary, Moundsville, West Virginia

Waverly Hills Sanitorium, Louisville, Kentucky

Posttown Elementary, Middletown, Ohio

Bachelor's Grove Cemetery, Midlothian, Illinois

Serpent Mound, Peebles, Ohio - Earth's Largest Effigy Mound