A science fiction-inspired apartment building designed by a famous Spanish architect.

Considered the birthplace of the Copper Age and Bronze Age, the river is tinted red from 5,000 years of mining.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

Its appearance in "Game of Thrones" may spur on the long-awaited restoration of this medieval shipyard.

One of Europe's largest groups of dolmens remains largely off the typical tourist track.

The corpse bride of Portugal.

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

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

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

The world's oldest bookshop still in operation.

An ethereal glowing blue ocean cave in Croatia.

An extraordinary house museum and cabinet of curiosities in the heart of Florence.

The first botanical garden, a feather in the cap of the Grand Duke of Tuscany.

This enchanting 600-year-old tree is so magical it inspired the beloved tale of Pinocchio.

The oldest operating pharmacy in the world features 800-year-old recipes.

This hill made entirely of ancient Roman jars was simply a garbage dump to the people of the time.

A submerged archeological park still holds the wonders of a Roman Sodom.

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

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

Buried next to Pompeii, this lesser-known Roman villa was the opulent vacation home of Emperor Nero's wife.

For centuries, this large Roman villa remained hidden thanks to the eruption that buried nearby Pompeii and Herculaneum.