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

A monument celebrating the idea of reaching inaccessible places.

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

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

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

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

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

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

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

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

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

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

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

The highway's southernmost spot is a beloved local attraction.

A morbid gateway to an Alaska town prides itself on the hunting history it represents.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

Rifle through images of skyscrapers, Worlds Fairs, and more in the largest public postcard repository in America.

A beloved Chicago music venue offering cold beer and lots of “Friendly."

A historic presidential getaway on the continental United States' southernmost island.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

This former prison now houses a lovely library devoted to Quebec's oft-maligned English-speaking history.