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

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

The oldest continuously occupied public building in the United States.

Recycling meets art in this colorful barricade.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

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

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

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

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

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

The bad-ass ride of a soul legend, housed in one of the world's few soul museums.

Its eclectic exhibits range from the world’s first motorcycle to Luke Skywalker’s Land Speeder.

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

On Gellért Hill, this statue depicts the tragic tale of lovers divided by the Danube.

The longest hedge maze in the world.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

The charmingly disheveled clock tower of Tbilisi's puppet theater.

Tucked inside a South Bank bar is an epic expressionist chronicle of the 20th century.

This 19th-century pub features stained-glass windows celebrating Victorian-era "champions."