A chilling disappearance (and rescue) of a child uncovers a geological mystery.

A historic and oft-filmed prison stands in a Chicago suburb.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

You thought Santa Claus didn't exist, but it turns out you were wrong.

Yup, that's where the name came from.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

Three hundred years of preserved Spanish colonial history in San Antonio.

A spring-fed pool so deep it's used for scuba diving as well as swimming.

The symbol was surreptitiously built into the river bank by German prisoners of war.

A museum dedicated to the alleged Roswell Incident.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

This quirky hot springs town known to locals as "T or C" was named after a radio show.

This is one really big nut.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

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

This Route 66 classic sports a giant fiberglass rabbit that you can ride.

A motel dedicated to Southwestern nostalgia.

Petroglyphs, bird watching, and a 100-year-old Ranch in one location.

This site honors the end of a 100-year boundary dispute between the United States and Mexico—all started by a river's shifting course.

A giant "X" symbolizes the blood spilled from the brutal Juárez drug wars.

El Paso's only historic house museum is an adobe mansion built by a prominent multicultural borderlands family.