A mysterious light of unknown origin on the backroads of Missouri.

Giant granite rocks standing end-to-end like a train of circus elephants.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

Erosion and time have created a naturally-formed water park.

In the middle of a desert subdivision, there is supposedly an impact crater site from Kcymaerxthaereal times.

At this research institute, the chile is king.

Some 2,000 carvings show this rare desert spring has been an oasis for travelers for over a thousand years.

Some of the Old West's most notorious outlaws frequented this mining town.

Adobe ruins punctuate the beauty of an 800 foot canyon carved by the Canadian River.

A serene garden path lined with 36 haiku stamped into clay stones.

One of the American Southwest's most extensive collections of Navajo rock art.

Legends surround this jagged rock formation in the New Mexico desert.

A tribute to the statues of Easter Island along Route 66.

The handsome statue is a tribute to the post riders who traversed 52 miles of tough Arizona terrain.

The largest and most well-preserved petroglyph site in the Verde Valley.

Bootleggers ran booze beneath this building before (and after) Route 66 appeared beside it.

A partial tunnel blasted into a steep ridge is all that remains of a failed railway across Arizona.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

This giant steer-skull edifice refuses to die.

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

A nature and cultural preserve named for its multitude of petroglyphs carved by the Northern Sinagua people.

An artificial crater field that trained astronauts for lunar exploration.

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

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.