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

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.

Amalfi's pre-industrial history is slowly being engulfed by the lush vegetation of the Ferriere Valley.

This seaside Italian village doesn't just look Escher-esque, it actually inspired the mind-bending artist.

A beautifully well-preserved ancient Roman villa.

A narrow opening between the mountains of the Amalfi Coast creates a scenic hidden beach.

Pompeii's less famous neighbor is still revealing her secrets.

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

Erotic art covers the walls of the largest ancient pleasure palace.

The walls and streets of the ancient city are peppered with penises.

Ancient snack bar of the Roman Empire re-opened.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

From battleships to Roman vessels, this museum explores the depths of shipwrecks in the region.

This pair of gilded girls atop an Art Deco building in Copenhagen were built to function as a weather indicator.

A masterpiece of Art Deco architecture hidden in plain sight in West London.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

This once-booming Gold Rush town is now home to a herd of feral donkeys.

A unique collection of artistic rides

These markers are used to document elevation changes around the famed dam.

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

Though it's not the largest, this one-kilometer outdoor market is reportedly the longest in Europe.

A defensive structure built during the Hundred Years War has remained useful in one way or another for nearly 700 years.

During the heyday of fishing in Hastings, there were more than 100 of these storage facilities.