These unique volcanic rock formations offer the perfect opportunity to camp and hike.

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

A prison-like structure guards the remains of a notorious Old West outlaw.

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

Conflicting markers on its floor tell a tale of two city centers in San Antonio.

An antique horse-drawn hearse provided French luxury for the dead in this Texan town.

The quirky gift from West Berlin for the 1968 World's Fair still stands in Hemisfair Park.

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

This hidden sculpture garden full of Wild West art is one of San Antonio's best-kept secrets.

A 131-year-old wunderkammer of Texas history.

Two small markers remember the Alamo's feline protectors.

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

There is an unmarked red button hidden over Houston's Buffalo Bayou that is just begging to pushed...

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

A beautiful South Korean gate and garden in Little Rock honors American Taekwondo.

Where animatronic singing fish go to retire.

The juke joint where legendary soul artists ate, drank, and made merry.

Home to drunken tower-climbing goats... seriously.

Ethereal alien hums and haunting whale songs emitting from...a giant sheet of vibrating metal?

This homegrown adoption center offers a wonderland of feline companionship.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

The only visible piece of San Francisco's most famous shipwreck.

This private residence was the template for one of the most beloved television homes of all time.

A brooding mansion of clinker brick stands out among the Victorian houses of Pacific Heights.