Places wermworm Wants to Go

The largest medieval water tank on the Iberian Peninsula is preserved beneath the Cáceres Museum.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

This gaping hole in the middle of a remote mountain lake looks like a portal to another dimension.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

A hidden three-foot-wide house separates these two regal churches.

One of the smallest bookstores on the planet.

An early work of the architect Álvaro Siza Vieira, these swimming pools blend into the beach.

Iron Age runes and ruins hide in plain sight along this Portuguese beach.

Originally used to sell brandy, the bull-shaped billboard became an iconic symbol of Spain.

An eerie collection of the surviving structures from a past celebration of the future.

Local lore says the devil built this beautiful medieval bridge to help a fleeing bandit.

The world's oldest bookshop still in operation.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

A unique seaside cave where Aleister Crowley faked his own death.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

This small chapel is built of human bones and decorated with a golden skeleton.

An old wool-washing house filled with Fluxus contemporary art.

A display of torture devices used in the Spanish Inquisition and other scourges of medieval Europe.

Dead weights honor the dead of Portugal's fishing industry.

This architectural beauty is the home to a personal collection of more than 600 examples of mechanical musical instruments.

There was a top secret plan during World War II to seal a group of soldiers inside the rock.

Infamous and now demolished panopticon prison built by its former inhabitants.

This abandoned mansion has a window for every day of the year, and is a temple for ghost hunters.