This bunker in northern France was built by Nazi German forces with the intention of launching up to 50 V2 rockets at London each day.

This ship offers visitors the chance to spend the night aboard a former floating hospital for fishermen.

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

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

Iron Age runes and ruins hide in plain sight along this Portuguese beach.

Perhaps the most spectacular grotto along the Algarve coastline.

Portugal’s highest lighthouse has one of the most impressive focal planes in the world.

Hidden beneath a beautiful overlook you’ll find the history of the city depicted in comic strip format next to a pay toilet.

You can cross from one country to another in a single hop on this little bridge.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

A cluster of granite granaries perched on stilts.

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

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

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

A small Portuguese cottage formed between boulders in the countryside.

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

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

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

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

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

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