This easily overlooked memorial immortalizes the scars from the 1956 Hungarian Revolution.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

The unusual sculptures are believed to be powerful political symbols.

In the hinterlands of Serbia's capital, a giant reflective mushroom houses an aeronautical history of the former Yugoslav republic.

A misnamed well, with a deep dark past.

The ruins of this medieval castle on a foggy hill tell the story of a once-mighty empire.

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

The interior of this Serbian royal family's mausoleum is covered with exquisite mosaics.

Structure built from the skulls of vanquished foes.

The first mosque in the world to receive electricity.

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

This historic timepiece is thought to be the only public clock in the world that keeps lunar time.

Inat Kuća, or "House of Spite," is more than just an oddly named restaurant.

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

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

Oriental bazaar in the heart of Sarajevo.

Bridge that died in war and was resurected.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

Built as an anti-fascist tribute, this surreal Yugoslav memorial became an unwelcome symbol after the Croatian war for independence.

Island wonderland for communist autocrats.