Trimmed trees grow alongside the graves like topiary tombstones.

This Croatian fairytale castle is slowly falling apart thanks to years of neglect.

Sitting beneath an unremarkable residential building is a museum devoted to classic Pinball.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

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

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

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

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

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

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

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

The abandoned military base looks like a post-apocalyptic wasteland.

One of the largest barracks of the Austro-Hungarian monarchy's military is now an abandoned ruin.

Budapest's Communist-era statues, banished to the suburbs.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

Yugoslavia's biggest underground airport lies in ruins.

A tower marking the spot where Yugoslavia began its resistance against the invading Nazis stands neglected, but not quite forgotten.

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

Overlooking the burial ground is a tower designed to prevent thieves from snatching the recently deceased.

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

The most loyal of little dogs, or a Victorian era publicity stunt?