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

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

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

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

This enigmatic Roman tower lurks just outside Belmonte.

A glacial valley filled with silver beech trees in the mountains of Portugal.

Nestled in the mountains of Portugal is a tiny village made almost entirely of schist.

One of the largest Roman settlements in Portugal.

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

The medieval town's star-shaped walls are geometrically dazzling, though not entirely impenetrable.

An 11th-century medieval castle cascades over the town of Numão.

One of the world’s longest pedestrian suspension bridges.

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

A submerged village appears when dam levels drop.

A cluster of granite granaries perched on stilts.

This chapel is the site of a yearly pilgrimage that originated during the Middle Ages.

Once part of an ancient international harbor, it's now an all-you-can-eat shrimp buffet for flamingos and other water birds.

A 1970s resort city now stands abandoned, caught in the middle of a divided island.

Regency-era excess on the English Coast.

65 million-year-old chalk outcroppings mark the end of the Jurassic Coast.

This former quarry is now a vibrant labyrinth of magical in situ sculptures.

Cliffs full of fossils at the portal to England's Jurassic Coast.

A midnight snack that lights up the night.

Two women with a flair for both adventure and artful clutter created this singular round home.