A military museum, art park, mausoleum, and architectural oddity all on one fascist's estate.

This winding road through an Italian canyon may be the most scenic drive in the world.

A unique form of erosion created an uncanny landscape of boulders perched atop slender columns of clay.

This once-forgotten oasis in the middle of Lisbon was first created over a century ago quite by accident.

Portugal's National Pantheon has a history of curses, collapses and financial problems.

One of the smallest bookstores on the planet.

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

A garden in Lisbon filled with giant porcelain creatures.

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

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

The world's oldest bookshop still in operation.

This charming candle shop has been in business since 1789.

This Neapolitan exhibition hall grants weird and wonderful insight into the intricacies of human biology.

An eerie, little-known Neapolitan museum filled with preserved human remains.

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

The patron of this extravagant Art Nouveau confection insisted that nothing less than a boat should project from its facade.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

A Museum of Psychiatry in a still-operating mental institution.

Dummies recreate radiological discoveries from history.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

Theme park featuring miniature replicas of European monuments.

A little sculpture with a large wardrobe.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.