Figures of unknown origin carved into the surfaces of underground caves.

A huge Megalithic chamber tomb located behind a cafe.

Limestone grottoes turns everyday objects into stone.

Exquisite examples prehistoric bas-relief carvings.

The largest underground church in Europe.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

This Bordeaux parking garage has 712 indoor spaces, and one outdoor.

British troops and Prohibition couldn’t stop this spot from becoming one of the United States' oldest continuously-run taverns.

No one really knows how these old hobby horses got here, but the herd keeps growing.

This roadside stand packs 300-plus varieties of tomatoes, from "Maiden's Fire" to "Kaleidoscopic Jewel."

Inside this 150-year-old barn turned antique shop is a vast array of items for curios hunters.

A museum of anything and everything Stooge.

Hidden in the plaza next to a pizza shop is an amazing little oddities shop.

After this historic church was destroyed by World War II bombing, its blackened shell was left standing as a monument.

Supposed home of the camel ridden by Napoleon during his Egyptian campaign.

A massive, secret marina for the Nazis' most formidable weapon in the Atlantic.

One of the great treasures of Neolithic art lies within this carefully constructed pile of rocks.

Rows of multicolored bathing huts paint the sand dunes with pops of color.

These unique markers designate the route American forces took during the Liberation of France.

One of the oldest and largest wooden churches in France was very evidently constructed by shipbuilders.

Personal garden filled with mosaics made of recycled garbage.

A quaint medieval millhouse hovers surprisingly above the waters of the Seine.

The Church of the Annunciation was carved into the face of a cliff, just like the rest of the town of Haute-Isle.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.