Croatia's towering concrete blossom grows from the site of a World War II concentration camp.

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

Bridge that died in war and was resurected.

Oriental bazaar in the heart of Sarajevo.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

This fortress-like monastery is covered with intricate frescoes.

The most impressive example of contemporary Romanian architecture in wood

This Transylvanian church has changed its denomination four times.

A vivid and terrifying mural blends pop-culture-style depictions of Hell with traditional Orthodox imagery.

This abandoned Soviet circus is slowly being restored to its Communist-era glory.

Seventy-five miles of limestone caves host more than a million bottles of wine beneath a sleepy Moldovan town.

Elaborate mansions built by Roma residents in Soroca to show their success after centuries of discrimination.

This sign marks the entrance to a tiny proto-state within the small country of Moldova.

A haunted outpost in Moldova, where guards are said to have fired at a ghostly figure.

A forgotten remnant of the Soviet Union, Transnistria is an unrecognized country hidden behind a heavily militarized border between Moldova and Ukraine.

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

People have been living in the cave houses on this Italian hillside since the Neolithic era.

Macabre symbols of death and mummies on display set the tone of this Italian purgatory church.

A 1,000-year-old church holds the bones of the Christian martyrs who died hiding inside it.

It's believed that these columns marked the end of the Via Appia.

Southern Italy's spinning top village.

An impressive bridge over a ravine also served as an aqueduct.

An Italian hillside ghost town.