A unique interactive experience of everyday life in communist Yugoslavia—a very different time in Croatian history.

One of the world's oldest olive trees, thought to be over 2,000 years old.

Also known as Uncle Karl, the beloved bronze copper keeps a watchful eye on St. Stephen’s Basilica while people rub his lucky belly.

A diminutive statue that was inspired by the sculptor's own daughter.

The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

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

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

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

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.

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

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

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

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

A miniature train-ride through Slovenia's largest cave system.

A whimsical bridge adorned with decorative dragons.

This one-time health resort was used by aristocrats around the world.

An Art Nouveau gem hides beneath the layers of city grime obscuring this once-magnificent building.

This little sun pays homage to a massive gate that once stood at this location.

At least according to the Guinness World Records.

A pair of gigantic baby heads greet passengers at Atocha Station.

The ruins of an ancient stadium that hosted gripping chariot and horse races.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.