A well-preserved medieval village nested on a rocky outcrop and surrounded by a network of cliffs, natural bridges and canyons.

This stunning French estate was so lavish that it landed its original owner in jail for the rest of his life.

The 43-mile route crosses through six islands with gorgeous views of the Seto Inland Sea.

The sunken structure looks like the victim of a catastrophic flood.

A towering baroque basilica jutting out of the French countryside.

France's highest manned weather station is the only one still inhabited by meteorologists.

Napoleon's childhood home is now open for people to explore the beginnings of France's short general.

These medieval ruins have survived since the 12th century, even providing shelter from the Nazis.

The ruins of a medieval castle linked to the murderous French lord that inspired the famous legend of Bluebeard.

This is what trains will look like after the zombie apocalypse.

A medieval military street hidden beneath a charming French fishing village.

A chapel on a volcanic core, marking the end of a successful journey.

Museum in a swimming pool where the water still flows.

Ancient paintings known as the "Sistine Chapel of Cave Art."

Plot your trip through the city on the sidewalk.

A forgotten relic from New York's bygone trolley system hides in plain sight under a bridge.

Turn around and stick your head between your legs for the best view of this tree-covered sandbar.

This ancient shrine has been rebuilt every 20 years since the eighth century.

A thick blanket of beautiful pampas grass cloaks this unique Japanese landscape.

One of the world's largest ancient burial mounds.

One of Japan's most famous sights, the bridge was originally built in 1673.

This Buddhist temple is home to the graves of the Japanese national legends, the 47 Ronin.

Nine Gardens in one—with tea service.

The quintessential Japanese rock garden has existed for more than 500 years.