From cartoon characters to tiny tanks, a guerilla sculptor's little bronze statues are hidden throughout the city of Budapest.

The metal leaves on this tree are engraved with the names of Holocaust victims.

On Gellért Hill, this statue depicts the tragic tale of lovers divided by the Danube.

This quiet, unassuming spot in Budapest was the birthplace of the bloody 1956 Hungarian Revolution.

This building has survived for more than a century and remains virtually untouched.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

Time stands still at this serene burial ground in the center of Budapest.

A random tree outside a Budapest hotel has become a DIY shrine to the late singer.

Some of the greatest minds in the history of Hungarian art and science converged in this café.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

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

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

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

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

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

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

A peculiar museum that includes many drunken tales, a drunk driving simulator, and much more.

A World War II evacuation tunnel turned into a history display of Croatian state and people.

This 135-year-old weather station studied the effects of the climate on human health.

An eclectic art form practiced by untrained masters is celebrated at this museum in the heart of Zagreb's old Upper Town.

Where the lovelorn find a home for their sentimental keepsakes.

A public work of art that also provides some relief from the summer heat.

Slovenia's first mosque is a striking mix of Islamic and modernist architecture.

The Slovenian architect designed many landmarks in the capital city, including his own dream house.