The world's smallest drawbridge.

The only sea in the world that has no land boundary.

Once a strategically imperative naval base, portions of this Bermuda dock complex now serve cruise ships.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

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

Visiting dignitaries and Hollywood stars once stayed at this 1920s hotel, alongside ghosts that are said to haunt its corridors.

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.

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

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

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

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.

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

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

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

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

Everyone's invited to put on a miniature concert with this world-class musical wonder.

This 15th-century Serbian Orthodox monastery also contained a school for illuminating manuscripts.

Abstract monuments express sorrow and resilience at the site of a horrific massacre in Nazi-occupied Serbia.

In the hinterlands of Serbia's capital, a giant reflective mushroom houses an aeronautical history of the former Yugoslav republic.

A sinuous path among steep cliffs creates a stunning sight in southwestern Serbia.

A tiny church on a man-made island in the Adriatic.

A curious cave church carved into the face of a cliff.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.