The top of a giant mesa, just outside of Amarillo, appears to float in the sky above.

Crumbling hotel echoes with the sounds of the '30s.

Decaying military base deactivated in the 70s is now visited by urban explorers and military enthusiasts.

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.

Official museum, hall of fame, and repository of the Texas Rangers.

A Texas museum filled with Broncos and Betties.

This collection of bronze hands comes from astronauts, presidents, baseball greats, and more.

A modernist landscape of water and sci-fi concrete.

A flamboyantly decorated bridge signals diversity and fellowship at the entry to Indianapolis' Broad Ripple Village.

Once adorning a New York skyscraper, these reclaimed ruins now haunt an Indiana park.

A medical facility that has been kept frozen in time.

A 30-year-old Sycamore tree grown from a seed taken to the moon and back.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

A collection of massive stacked rocks in Texas includes a snarky note on the benefits of modern technology.