Polish luminaries and masterful folk art find sanctuary in this unique cemetery.

Possibly the world's largest hourglass only needs to be reset every New Year's Eve.

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

Museum dedicated to the terror regimes of Hungary.

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.

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

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

Relive a Polish uprising via an enormous, century-old cyclorama.

The silly symbol for an underground protest group is now scattered around the city.

The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

Monument to a suicide protesting the Soviet invasion.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

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

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

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

Each year melting snow turns these Austrian hiking trails into scuba zones.