The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.

The most isolated mailbox in America lets desert travelers record their passing.

A volcanic tunnel illuminated by natural skylights offers a shaded respite from the desert sun.

In the middle of the desert, miles from any human life, sat an anomalous pay phone that still magically answers your calls.

This picturesque mansion has gone from opulent ruin to nature museum.

This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.

A museum dedicated to the alleged Roswell Incident.

A blacklight journey through a celestial art exhibit.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

The ruins of this abandoned fort now stand as a picturesque reminder of America's march West.

This unassuming layer of clay boasts an out-of-this-world origin story.

This small piece of railroad history sits behind the parking lot of a chain grocery store.

A roadside attraction filled with an astounding array of gloriously wacky vehicles.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

Neal Cassady may still have an open tab at one of Denver's oldest watering holes.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

While comics are the main attraction at this megastore, the second floor plays host to an exhibit fit for a museum.

This prison-turned-museum is a remnant of the Old West's grizzly, violent past.

This mining town boomed in the Atomic Age when uranium was gold, only to be abandoned when the industry collapsed.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

An apocalyptic seismic event creates a deadly chain reaction that ends with a 6-mile long lake developing within weeks.

One of the last socialist halls still standing in the United States.