Imperial palace of Emperor Galerius, the Emperor behind the worst Christian persecutions during the Roman Empire.

Structure built from the skulls of vanquished foes.

A Red Cross memorial museum at the site of the Niš concentration camp that operated for four eventful years during World War II.

This memorial park stands on the site of one of the largest mass executions of the Second World War.

Bridge that died in war and was resurected.

A monument on the pavement marks the spot where two cultures that shaped Sarajevo come together.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

Backwards hour and minute hands and a timing mechanism that fluctuates with the temperature led to this clock tower's local nickname.

Ruins of an old water tower that look like a horror-film castle.

Beautifully carved tombstones fill this unmarked graveyard, uniquely situated near the village's famous stone wine cellars.

It may seem a little out of place in a tiny village, but the inspiring story of its creation made headlines.

A large concrete replica of a 12th-century figurine.

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

Something's watching you.

Romania's "Red Ravine" is a little-known natural wonder that bears a resemblance to the Grand Canyon.

Near Belgrade, an ancient-looking sarcophagus serves as a World War I monument.

An artificial date palm stands as a memorial to Warsaw's Jewish community.

Abstract monuments express sorrow and resilience at the site of a horrific massacre in Nazi-occupied Serbia.

This ice cream parlor serves scoops of flavors like rakia, medlar, and poppy seed.

This symbol of Yugoslav liberation decorated with 620 carved heads of mythical creatures is now a forlorn relic of another time.

This spa park features an open-air museum of abstract marble sculptures.

An idyllic traditional timber village on a picturesque hill was built for a film.