The sprawling attraction boasts a collection of more than 150 historic wagons.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

These pretty kitties killed and ate as many as 135 railway workers.

This awkward aquarium sculpture is one of the strangest statues in Chicago.

Hike the unusual hoodoos and rock formations that form this little-known natural wonder.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

The unusual burial monument of Arizona's first governor.

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

An homage to everyone's favorite prehistoric cartoon family.

These elusive, isolated rodents evolved into a distinct, locally iconic subspecies.

This spectacular track has run continuously since 1882.

What is the Thing?

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

This curiosity shop contains a museum filled with bizarre, unique objects.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

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

A geological mystery on Camelback Mountain.

A museum and tribute to a brave profession.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Dramatic river bend surrounds a natural red-rocked pedestal.

This isolated outpost was once the only place to cross the Colorado River for hundreds of miles.

When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."