Claude Monet immortalized this medieval bridge in two of his paintings.

A beautiful discovery site of prehistoric burials.

There once was a man named Lear / Who found limericks so dear / His final resting space / Is an unusual place / Most people don’t know he’s here.

A special area of the National Archaeological Museum of Naples is located inside a metro station.

A Nesting Doll of Churches.

The summer residence of a Spanish ambassador who brought viticulture to an impoverished region, sparking its transformation into one of the world's best wine regions.

Colorful power station with a chimney equipped with a gallery for exhaust monitoring equipment.

A public work of art that also provides some relief from the summer heat.

A miniature train-ride through Slovenia's largest cave system.

A gruesome and mysterious ancient sculpture of a pagan deity from the Roman occupation of Celtic Britain.

A neighborhood park in the city of Cáceres hides what some believe are revolutionary examples of Neanderthal cave art.

Learn how dolls are made in this fascinating museum inside a 19th-century mansion.

The world's first electric battery-powered submarine.

This technological marvel is one of the world's first 3D-printed bridges.

Walk into an underground archeological dig, the site of the Roman Forum that was once the center of Valencia.

This small cemetery and its chapel are located in the middle of a traffic circle.

The defensive tower was built centuries ago to warn locals of Berber pirate attacks.

Replicas of fossils unearthed during renovation work reveal how this area would have looked millions of years ago.

See replicas of Europe's most famous cave paintings and even some of the animals that feature in the art.

The ruins of an ancient Celtiberian town with incredible rock-cut buildings and a Roman aqueduct.

Abandoned 18th century weapons factory in the Aezkoa Valley.

Religious dwelling in a Spanish volcano.

Haunted tuberculosis hospital built by the patients.

Stormy conditions send jets of seawater bursting through holes in the cliffs.