A unique geological area spiked with wind-carved rocks that resemble teepees.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

A museum dedicated to the alleged Roswell Incident.

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

Tracks near this Texas nature site were once thought to support the Creationist belief that man and dino coexisted.

The bridge continues the legacy of President Franklin D. Roosevelt's New Deal policy.

A quirky collection of old chairs fills a random vacant lot in suburban Texas.

A modernist landscape of water and sci-fi concrete.

A town pays homage to its namesake.

Along the historic Mother Road is an old gas station with a secret counterfeiting past.

This ancient settlement contains some of the largest earthen mounds in North America.

One of the largest publicly funded mural in the country is one city's love letter to itself.

Park filled with machinery that drove the southern agriculture and oil industries forward.

This unusual roadside attraction filled with handcrafted signage is home to a unique church.

The only international border marker within the United States.

The 19th-century ruins hide deep in an overgrown forest.

Witness to many historic moments in early Texas history.

Resting place of the Texas A&M canine mascots, who watch the game from the grave with their own miniature scoreboard.

Campus tradition says couples who walk beneath this enormous oak will stay together forever.

The history of funerals and funerary customs.

This abandoned Abraham Lincoln statue has also earned the honorary of "World's Ugliest."