A Wild West jailhouse that slid down the mountainside.

Rippling sand dunes frozen in the Arizona rock.

An artificial crater field that trained astronauts for lunar exploration.

One of the largest, oldest, darkest, quietest motel rooms in the world.

Ancient pueblos built into the base of a natural canyon wall.

The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

This historic national park is covered in the stunning ruins of red rock pueblos.

A mysterious spirit totem at the edge of Navajo lands.

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

The cinder cone volcano with a less than complimentary name.

An homage to everyone's favorite prehistoric cartoon family.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

These serpents are considered holy and pampered accordingly.

The oldest teak bridge in the world is made from the remains of a royal palace.

A grand imperial capital left to fall into magnificent ruin.

A part of the world's largest marsh seems to be growing bright red Martian grass.

The world's largest secondhand book market is a haven for bibliophiles and bargain hunters.

Sacred Buddhist home of some spiritual monkeys.

Former host to the World Elephant Polo Championships.

A beautiful stretch of Bangladeshi river known for its high quality sand is possibly more remarkable for its color changing water.

A limestone wonderland of water and subterranean secrets.