Spain's stunning solar energy plant.

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

This crumbling Portuguese ruin overlooks the populace it once ruled.

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

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

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

This oddly shaped church resembles a rocket.

An exquisite collection of fairytale conveyances that puts most car museums to shame.

Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

The world's oldest bookshop still in operation.

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

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Catering to broken dolls for almost 200 years, this repair shop is now a charnel house of doll parts.

A garden in Lisbon filled with giant porcelain creatures.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

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

The corpse bride of Portugal.

Europe's largest collection of matchbox designs is a fascinating exploration of the cultural history of the world.

The medieval castle built as headquarters for the Pope's secretive Knights Templar.

One of the largest Roman settlements in Portugal.

The "Little Ones," show Portugal in full miniature splendor.

A majestic hotel for dreamers rises from the center of a fairytale wood.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.