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

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

The entire history of the U.S. Space Shuttle Program is painted on an enormous roadside water tank.

The state bird of New Mexico, constructed entirely out of garbage.

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

Buried beneath the New Mexico sands are believed to be millions of copies of Atari's E.T. video game.

This is one really big nut.

This 47-foot chile pepper sculpture welcomes Scoville heat unit obsessed tourists to the Big Chile Inn.

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

A Prada store in the West Texas desert that is never open for business.

This quirky outpost and gallery inside a former church is an unexpected trove of handcrafted art.

A World War II officers' club features Old West murals painted by German POWs.

This old abandoned sign flickers to announce a motel that isn't even there.

Larger-than-life cut-out murals of James Dean and Elizabeth Taylor, dedicated to their 1956 film ‘Giant.’

Minimalist modern art on a repurposed military base in rural Texas.

Not everything is bigger in Texas.

Twelve decommissioned shipping containers evoke a reclining person in Marfa, Texas.

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

Water still flows through the oldest Spanish aqueduct in America.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

With print dying, this local paper keeps the lights on by doubling as a stunning cafe and cocktail bar.

A little stop along the Texas highway where Rock Hudson, Elizabeth Taylor, and James Dean stayed while shooting the 1955 film "Giant."

One of the largest historical collections on Texas and the American West.