A Franco-era dam flooded (almost) everyone out of this centuries-old Aragonese town.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

The world's most famous cheese caves.

A 14th century bridge built as a fortress, where the devil lurks on one of its towers.

The blowhole bursts spectacularly right next to the buildings in a medieval seaside town.

An abandoned nightclub has become a vibrant work of art.

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

A whimsical garden of outsider art in the Spanish countryside.

This narrow path was cut right into a French mountainside to feed the country's early naval expansion.

This religious complex carved into a cliff is steeped in legends of miraculous stags and the Holy Grail.

The deserted pirate-themed restaurant still entices explorers.

An arresting arch punched straight through a mountain provides one of the most scenic spots, and challenging climbs, on the planet.

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

Historic medieval fortified city in southwest France.

An isolated village literally built into the crevices and rock formations of a mountain.

Trek into the depths of the cave where 17,000-year-old paintings exist alongside 400-year-old graffiti.

This overlooked museum houses an amazing collection of rare, antique typewriters.

At the foot of a waterfall lies a peaceful swimming lagoon and evidence of over 60,000 years of human habitation.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

This magical space partly designed by Antoni Gaudi is one of the best examples of romantic gardening in the Mediterranean.

Village situated on a narrow volcanic escarpment.

An elaborately decorated house sits on an otherwise quiet street.

Long tunnels run under the ancient chariot racing circuit to the tower.

This Roman arena once played host to bloody gladiatorial battles.