This remarkable prehistoric town is full of watchtowers and houses that have withstood thousands of years.

This unique prehistoric funerary monument is notable for its distinctive boat-shaped design and exceptional preservation, offering a fascinating glimpse into the island's ancient burial practices.

These Stolpersteine located in Spain honor Republican soldiers who perished at the hands of Nazis after the fall of France.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

Huge stone depressions which may have acted as an Incan agricultural experiment.

This archaeological site features an early version of today’s refrigerators.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

These steeply terraced ruins are a stop along the Inca Trail to Machu Picchu.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

A flooded Mexican cave that hides a river beneath the water.

One of Mexico's least-visited archaeological sites is tucked away inside a theme park.

These enigmatic ruins continue to vex archaeologists.

An important Mayan religious and trading center dating back to 200 BC.

Sparkling, calcite-covered skeletons of children who may have been sacrificed to appease an angry god.

This massive Maya archaeological site is home to the tallest man-made structure in Belize.

Water of undetermined depth has attracted rare fish and cult leaders alike.

"Only the devil could play golf here."

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

A piece of the iconic wall found an unlikely new home in a Vegas bathroom.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.