The remains of 40,000 humans, meticulously stacked in a tiny churchyard shed.

One of the largest ochre quarries in the world, hidden in a limestone landscape.

This ancient theater was once the home of fierce gladiatorial battles.

The 16th-century church was kept in its ruined state as a reminder of the casualties of World War I.

This collection of French root art looks like an indoor fairy wonderland.

The deserted pirate-themed restaurant still entices explorers.

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

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

A self-built mosaic house and sculpture park.

A medieval church with largest and oldest collection of Renaissance frescoes in France.

Since ancient times these picturesque springs have been providing bathers with healing waters.

Museum in a swimming pool where the water still flows.

This French castle is said to have once held the Holy Grail but is now a gorgeous mountaintop ruin.

The world's largest reflecting pool is just two centimeters deep.

Beautiful carved tunnels.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

Massive puppet-automaton machines created by French artist collective Machines de l’Ile.

Ivy-covered Medieval tunnels cut through this charming town in France's Loire Valley.

A public park off the beaten path with a beautiful waterfall and 13th century Cistercian abbey.

The fantastic architectural models of a French traveler.

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

Monsters and miniatures are held in equal esteem at this wondrous museum.

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