A clear blue swimming hole with hidden caves, still unexplored.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

This constitutionally sound Muffler Man harkens back to the days these attractions were a must-see.

A pair of giant legs paying homage to a poem, a king, and it would seem, socks.

A time-capsule monument reminding future generations of the importance of efficient and effective use of natural resources.

These half-buried combine harvesters just off Route 66 are an homage to the Cadillac Ranch.

The Grand Canyon of Texas.

A small car graveyard sits in the shadow of the famous Cadillac Ranch.

This water tower slanted at an uncomfortable angle off the old Route 66 was an ingenious marketing ploy.

Once in disrepair, this popular Texas stop along iconic Route 66 has been restored to its past glory.

A small side chapel in Santa Fe's basilica is home to the oldest statute of the Virgin Mary in North America.

An extensive collection of fine art devoted to man's best friend.

Near the ruins of a Civil War coastal fortress lies the only known African refugee cemetery in the United States.

The island residents are known for taking their quirky sense of humor with them to the grave.

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

Arrr! The most authentic collection of pirate artifacts in the world... matey.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

Intertwined, interspecies trees which locals believe can grant boons to lovers.

St. Augustine's record-setting narrow street was designed to protect against pirates.

Bronze footprints mark the path where a civil rights leader tried to march in peaceful protest before being knocked unconscious.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world’s largest coastal brick fortresses.

The highway's southernmost spot is a beloved local attraction.