A secret climbing tree hides along the side of a Costa Rican road.

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

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

Death rituals and sacrifice inside a Peruvian megalith.

Did Inca children also slide down these smooth rocky slopes above Cusco?

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

A painting in the historic Cathedral Basilica depicts Jesus and his disciples dining on a traditional Peruvian menu.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

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

An Inca spa, military outpost or maybe… both?

A Christian monastery stands on what was once a holy Incan temple.

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

A spiritual vortex among the red rocks in Sedona.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

Dramatic river bend surrounds a natural red-rocked pedestal.

These elusive, isolated rodents evolved into a distinct, locally iconic subspecies.

All of the 20 occupied houses in this mostly abandoned town feature some curious display of junk art.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

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

The bullet-riddled wall from the St. Valentine's Day Massacre, bloodstains enhanced for your viewing pleasure.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

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