The remains of an entire Roman city can be explored in this interactive museum.

Budapest's Communist-era statues, banished to the suburbs.

A Hungarian pharmacy museum with a box full of mummy powder.

Once the home of a hermetic monk, this cave now houses a small church.

Hungarian mummies in beautiful painted coffins.

A fake Transylvanian castle houses a cathedral of antlers.

A 19th century artistocrat's mansion, turned into a library, hidden in a modern library.

Oriental bazaar in the heart of Sarajevo.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

This spaceship-like Serbian monument reaches for the stars in celebration of the fallen fighters of fascism.

Religious perseverance and cultural coexistence manifest in an architectural gem that multiple wars couldn't topple.

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

This surreal memorial/cemetery is a necropolis of crumbling stonework and puzzle-shaped headstones.

This abandoned Olympic skiing facility still bears the scars of the Siege of Sarajevo.

This historic cemetery was inaccessible for several years due to dozens of land mines.

Venice's "Island of the Mad."

The only gulag ever to exist in socialist Yugoslavia.

Island wonderland for communist autocrats.

This huge metal monument is slowly being stripped to its concrete skeleton.

A war-torn Olympic relic is being overtaken by graffiti and nature.

This top-secret nuclear bunker hidden in a Bosnian mountain has been converted to a modern art exhibition space.

This brutalist monument is inscribed with 9921 names of Yugoslav partisans who perished during WWII.

Celebrated example of Ottoman architecture that also served as a site for brutal massacres.

These warring psychedelic crags commemorate an unsuccessful military operation.