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.

Death rituals and sacrifice inside a Peruvian megalith.

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

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

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

It took 82 years and four different plaques to finally get the story right.

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

An unexpected desert oasis in South America.

The mysterious "Candelabra of the Andes" could represent anything from a god's trident to a hallucinogenic plant.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

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 Peruvian canyon is filled with geometric salt pools that have been being harvested since the Incan empire.

A floating McDonald's built for Expo '86 is now a derelict relic on Burrard Inlet.

The mountaintop wind turbine boasts a viewing deck — and a fair share of controversy.

This expansive bridge in the Canadian wilderness was originally just built for friends.

The century-old plant starred as the villainous clown's lair in the miniseries based on Stephen King's "It."

While these wooden totems bear a striking resemblance to First Nations artwork of British Columbia, their actual origins lay on the opposite side of the Pacific Ocean.

An American city stranded at the tip of a Canadian peninsula where strict adherence to the "49th parallel rule" became problematic.

This quirky countryside store is known for the goats that hang out and eat the grass on its roof.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

These mammoth-yet-narrow crevasses in the Earth are perfect for taking an otherworldly swim.

Building this tragically pointless stone barrier cost the lives of the prisoners made to build it.