Designed to mark the geographical center of France.

This huge abandoned fortress hidden inside a mountain holds a world of subterranean secrets.

The prolific artwork of a self-taught sculptor.

An impressive home made of stone, carved more than a century ago.

These milestones have survived centuries and still mark distances although incorrectly.

Two 2,500-year-old Phoenician boats found on the coast of Spain, giving incredible insight into the ancient maritime traders.

Ciudad Real's former town hall found new life in 2005 when the chime clock with automatons was installed.

A masterpiece of Gothic-Mudejar design in Ciudad Real.

An abandoned airport in the middle of nowhere.

A house covered entirely with shells.

Holding the current title of "biggest chair in the world," it stands with little fanfare in Lucena, Spain.

This line of 12 tower mills described in the story of Don Quixote is among the most iconic landscapes in Spain.

This art installation at an abandoned lipstick factory has distinct anti-capitalist vibes.

Abandoned tunnels dug for the once-thriving sea salt industry on the coast of southern Spain.

The ruins of a bombed medieval village memorialize the destruction of the Spanish Civil War.

A site where “the ravages of the war are more striking…than any other place in contemporary Spain.”

The experimental test tracks of a retro-futuristic monorail still stand in the French countryside.

This natural French spring has been turned into a magical grotto by Roman and medieval constructions.

In the middle of a forest you can find the first landing place of an air balloon in the Netherlands.

This fascinating abbey is considered the oldest monastery in the region.

From carts to cars, this leftover Roman bridge in France has managed to survive for centuries.

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

This French chateau is home to the world’s largest private collection of fighter jets.

This towering statue of Jesus provided internet to the surrounding area.