Blitzkrieg bop your way through Berlin's Ramones Museum.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

Art and a pun, all in one.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

A dead saint, a deadly poison, and a mysterious holy ooze.

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

Southern Italy's spinning top village.

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

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

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

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

What happens when you cross a mayor and a painter?

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

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

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

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

For over 40 years, this quaint little house has teetered on a rock in the middle of a river.

Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.

An abandoned saucer-shaped monument in the Bulgarian mountains.

A magnificent, glittering building tucked into a tiny Bulgarian mountain town.

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

A gigantic statue of a Russian soldier watches over the ancient city of Plovdiv, a prominent reminder of the Soviet period in Bulgaria.

This 14th century castle withstood years of battle but is now sliding off the hills into the Danube.