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

Don't blink or you'll miss it.

This once-booming Gold Rush town is now home to a herd of feral donkeys.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

This huge dam across the Colorado River caused an armed standoff between two U.S. states.

The shop's owner has spent decades in the desert wearing nothing but a strategically placed sock.

This memorial pyramid marker honors one of the United States Government's first official camel riders.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

One man spent decades making these working scale models of antique cars.

This collection of vintage signs reflects the long and colorful history of this Arizona town.

At an isolated roadside rest area stands a monument marking where famous Western star Tom Mix died in 1940.

Florence's historic adobe county courthouse was turned into a historic site that honors one of Arizona's most prominent political leaders.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

Take a monster truck tour around an ostrich farm in the middle of the desert.

An amazing collection of model trains, collectibles, and artifacts that span the last 100 years.

A reproduction of earth's many biomes.

An off-the-beaten path cave with an underground lake.

This collection of neon icons is preserving Arizona's history, one sign at a time.

This giant steer-skull edifice refuses to die.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

This church on a Tohono O'Odham reservation has stood since 1797.

One of the largest open-pit copper mining operations in the entire country.

America's only nuclear missile silo open to the public.

A house turned museum is the real-life "home" of the fictional main character of The Wizard of Oz.