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

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

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

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

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

Naturally formed rock city in Poland.

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

This 700-year-old structure is one of the most unique architectural and historic monuments in Gdańsk.

This uber-quaint Polish village is known for its habit of painting elaborate floral motifs on just about everything.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.