The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

An underground city beneath Krakow's postwar socialist utopia.

This unique railroad museum secretly contains the history of Poland rebuilding itself from the inside-out.

Come to this Polish museum to take a good, clean look at filth.

This extensive collection covers thousands of years of Polish military history.

This open-air museum was originally a World War II testing ground for German missiles and rockets.

Boats must transform into railroad cars to navigate this Polish canal.

Poland's oldest salt mine has nearly everything one needs to live underground forever.

One of the world's largest collections of medieval religious art.

A delightful museum entirely dedicated to the tiny homes of dolls.

Inside this Krakow church, an explosion of psychedelic color.

A haunting deserted hotel is a favorite with artists and photographers.

A statue honors the children who fought Nazis in Poland.

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

Museum dedicated to "the man who moved the Earth."

An abandoned Nazi explosives plant founded by the inventor of dynamite is now an underground museum.

A peculiar family mausoleum built by a German nobleman captivated by the occult.

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

A national collection of Communist-era musical posters.

This hidden collection of everyday objects illustrates life within communist Poland.

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

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

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

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