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

The largest toy museum in Poland showcases Europe's history of childhood.

This mysterious and once-grand memorial still embodies a remarkable architectural vision.

These mechanical goats first battled it out in the year 1551, all because of an overcooked deer.

One of the largest amphitheaters in Europe is a former Nazi gathering place that still stands today.

The final resting place of more than 200,000 people, this is one of the largest cemeteries in Europe.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

The hollow trunk of this 650-year-old tree was used as a hideout by two Jewish brothers during World War II.

These rare statues are one of the few remaining material witnesses to Old Prussian culture.

A World War II torpedo launch station abandoned off the Polish coast.

Memorial to the lost dead of Gdansk, whose resting places were destroyed during World War II.

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

What was once an underground Nazi city is now Europe's largest bat reserve.

This imposing 20th-century castle was abandoned before it was ever completed.

Once a giant gingerbread factory, this space now hosts exhibits and workshops on the historic treat.

Deep in a Polish forest, this collection of Iron Age megaliths still holds onto many of its ancient secrets.

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

A collection of old neon signs from all over Poland line a secluded courtyard.

A statue honors the children who fought Nazis in Poland.

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

This centuries-old wooden wonder was built in less than a year and is one of Europe's largest timber-framed churches.

This fairytale inspired, warped building houses restaurants, shops, and a radio station.

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

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