In Portugal, a secluded stretch of untouched natural beauty hides at the bottom of a steep hill.

The verdant mossy ruins of a Franciscan monastery lie in the remote Sintra hills awaiting exploration.

The ancient sauropod tracks found in this former quarry are some of the largest in the world.

Some 4,000 individual tiles make up this striking blue billboard from the golden age of air travel.

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.

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.

Panoramic views from the mountains over a facility built to provide tuberculosis patients with fresh mountain air.

This enigmatic Roman tower lurks just outside Belmonte.

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

A windswept necropolis carved into the rocks overlooks the "most Portuguese town in Portugal."

The ruins of a 16th-century bridge loom over Olivença's sovereignty.

This abandoned fortress still stands guard over the Guadiana River despite a history of warfare.

Cloistered comestibles are served with style at this French Orthodox monastery.

Pagan monument converted to Christianity with the population.

This crumbling Portuguese ruin overlooks the populace it once ruled.

A neolithic tomb converted into a tiny chapel.

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

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

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

A spectacular Petrine Baroque summer palace commissioned for Catherine I by Peter the Great.

A unique configuration of blown glass can be found inside this hotel lobby.