An archeological treasure trove stumbled upon by a couple of children.

An honorary saint of the people, Maria Adelaide became an incorrupt corpse, the clothes intact, exhaling “a strong scent of roses.”

This abandoned naval battery stood at the ready as recently as the 1980s.

A submerged village appears when dam levels drop.

A small Portuguese cottage formed between boulders in the countryside.

A living art gallery painted on a canvas of Monterey pine trees.

A castle-like sea fort from the 17th century is now a museum to oyster farming.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

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

The odd cement nubs littering this Spanish square are actually the entrances to a series of buried silos.

Abandoned Nazi train station turned underground astroparticle laboratory.

Houses are tucked between, on, and underneath giant boulders.

A modernist church in an ancient village.

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

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

A landscape decorated with enormous skull sculptures.

The deserted remains of a luxury hotel turned hospital ward.

A small church ornamented with medieval erotic sculptures.

The quirky - and private - constructions of a secluded artist depict the house of God.

Walls of stone rise up from sinkholes caused by underwater erosion.

This awesome Spanish castle is so fantastical it was actually used on Game of Thrones.

"Alleys of Stone" form natural mazes in Spanish natural park.

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

Salaguti's live-in museum: a fortress against criticism and consumer art.