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

This picturesque castle in Poland has a rich history, including a legend that ties it to lost Incan treasures.

Old cabin-like homes in a rural community untouched by time are known for their vibrant and colorful window shutters.

Relive a Polish uprising via an enormous, century-old cyclorama.

This bell stars in a tragic love tale and is said to make wishes come true.

The site of one of the largest prison escapes of World War II.

The two abandoned overpasses are among the largest bridges in Poland.

An impressive monument to Poland's independence.

People in Poland have rallied to save this unnatural desert from being reclaimed by the forest.

An open-air museum of 18th-century homes and churches transported from various villages in Southern Poland.

A miniatures park with a model of Wolf's Lair as it looked during World War II.

In the summer, the area around this sculpture transforms into a vibrant concert venue.

This hilltop ruin is of the hundreds of stone columns built in tribute to the first German chancellor.

These 18th-century paintings of Warsaw were used to reconstruct the city after World War II.

On this Polish road, an optical illusion makes cars seem to roll uphill.

The relics are stored in a silver reliquary, where they can be seen through glass.

The shattered remains of the world's once tallest structure.

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

A stone in Wolin, Poland, marks the possible location of a legendary Viking fortress.

This symbol of Polish heritage survived the occupation during World War II, hidden in plain sight.

Hundreds of notes give thanks to the patron saint of lost causes.

The final resting place of the last "gypsy king" of Poland.

The first, and perhaps only, monument dedicated to Wikipedia.

Disturbing works of outsider art, carved from whole logs.