This 16th-century monastery was founded to cloister the daughters of wealthy local families.

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

A backdoor to Machu Picchu that only the most foolhardy infiltrator would attempt to breach.

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

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.

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

A fascinating little museum all about the rich history of Peru’s famous plant.

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

This sundial indicates the time based on where you stand within it.

The 7,000-year-old calcium carbonate formation creates a magnificent natural bridge.

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

Once a dining hall for boarding school students, this lodge was a popular haunt for nuclear physicists working on the Manhattan Project.

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.

An unexpected desert oasis in South America.

A lovely park home with a few interesting guests.

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

When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.

This isolated outpost was once the only place to cross the Colorado River for hundreds of miles.

These mid-century motels once housed the workers who built the Glen Canyon Dam.

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

This stunning Brazilian library contains the largest collection of Portuguese texts outside of Portugal itself.

Eduardo Kobra’s breathtaking 32,300-square-foot graffiti wall took over Rio’s Olympic Boulevard.

Try not to get lost in this picturesque Brazilian labyrinth of the dead.