An otherworldly restaurant perched on the edge of a jagged cliff next to a medieval holy city.

All that remains of Jacques Cousteau's 1960s underwater "village."

The cedar tree in Highgate Cemetery earned its title by accident.

The ornate structure is part of a building boasting more marble than the Vatican.

Within the Saudi Arabian desert lies a 2,000-year-old ghost town made of stone and mud.

Rome's ancient Etruscan rival, now a park full of ruins.

This beautiful and unmissable little museum is full of fascinating artifacts from Mesoamerica's great civilizations.

A medieval church built into an ancient cave.

Venice's "Island of the Mad."

Land that belongs to no nation.

An archaeological site believed to be the burial place of the "mother of us all."

An Aztec snake god has taken the material form of an apartment complex.

A semi-abandoned village destroyed by U.S. bombings during World War II dominates the valley of Turano.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

Italian cave with exceptional acoustics and an unsavory history.

This Gothic-style church is reputedly built atop the remains of one of Jesus's apostles.

This restaurant is proud to be built atop a burial ground.

The middle finger of modernity.

A deeply beautiful 15th-century stepwell with a tragic story.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Montreal's giant farmer's market is a foodie's best friend, especially in the winter months.

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.

The remote resting place of a notorious Wild West outlaw whose death is shrouded in mystery.

An ancient Viking village in North America that predates Columbus by 500 years.