An underground city beneath Krakow's postwar socialist utopia.

An artificial hill and apparent calendric structure built in the Early Middle Ages immortalizes a legendary Polish princess.

In the midst of a living monument to Soviet social engineering, Polish Catholics built this church by hand.

There are thousands of tributes and memorials to the King, but none quite like this one in a Kraków city park.

At first glance, this area seems like just another city park, but the lush landscape hides a dark past.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

A memorial to the beloved brown bear that served in the Polish army during World War II.

The unsettling remnants of a torn down movie set lies nearby the ruined location of the actual Płaszów Labor Camp.

This man-made mound monument was built out of soil from all across the Polish empire.

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

A perfectly preserved hill village where the buildings are painted like white lace.

The world's newest astronomical clock is also its most accurate.

When this monument to Slovenia's national poet was erected, it's said to have sparked the ire of nearby church authorities.

A highly-criticized monument in Budapest has become the site of a makeshift Holocaust memorial.

How did an Australian statue of the Bard of Avon end up in the Hungarian capital?

A scene from one of Hungary's most famous novels.

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

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

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.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

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

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.