This fairytale medieval church in Poland originally spent centuries in Norway.

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

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

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

A 90-ton, gravity-defiant steam locomotive shoots for the skies in this bizarrely beautiful public artwork.

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

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

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

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

This biographical museum honors the groundbreaking scientist at her birthplace in Warsaw.

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

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

A striking public sculpture representing the period of martial law in Communist Poland.

Order “Proletariat’s Cutlet” at this communist-themed restaurant allegedly once visited by Lenin.

A statue honors the children who fought Nazis in Poland.

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

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

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

The traditional Polish croissant, folded 81 times into the shape of a horseshoe, is a legally protected cultural treat.

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

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

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

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

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