A plaque bearing the names of those who dedicated themselves to protecting Budapest's Jewish population during World War II.

A century-old prison in the heart of Vilnius is now a lively bar, dance club, and artist residency.

This monumental fountain has moved around the city multiple times.

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

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

A stunning architectural yet functional feat, towering over Oslo.

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

An underground paleo-Christian burial site composed of the remains of several cemeteries and Basilicas.

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

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

Ancient snack bar of the Roman Empire re-opened.

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

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

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

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

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

San Gennaro, the patron saint of Naples, greets pedestrians between these narrow city streets.

The burial place of an obscure North African saint was turned into a macabre body preservation factory for the 17th-century Neapolitan elite.

A curious art park at the geographic center of Europe is home to 3,000 television sets and other wonders.

This full-sized orange tree lives suspended in mid-air above the streets of Jaffa.

Inside this medieval church resides a unique set of murals.

According to myth, there's a bloody explanation for the beautiful bright red color of this rock formation set amidst alpine vegetation.

One of Vietnam's most iconic landmarks was built by Japanese traders and is now in danger of sinking.

A 100-plus-year-old mill transformed into a hotel and restaurant.