The celebrated eyesore created by starry-eyed sweethearts.

Site of a classic 19th-century physics experiment to prove the earth is rotating.

The final resting place of soldiers' loyal canine companions.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

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

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

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

Picturesque intersection of witchcraft and ancient Christianity.

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

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

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

One of the largest Roman settlements in Portugal.

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