Ancient catacombs form the foundation for this Rococo orgy of a church.

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.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

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

The corpse bride of Portugal.

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

A garden in Lisbon filled with giant porcelain creatures.

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

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

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

"Portugal's Stonehenge" is made up of nut-like stones aligned with the heavens.

This crumbling Portuguese ruin overlooks the populace it once ruled.

This star-shaped military outpost is now simply trying to protect itself from neglect.

An early Portuguese serial killer's head is alarmingly well preserved in a jar at the University of Lisbon.

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

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

This oddly shaped church resembles a rocket.

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

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.

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

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

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