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

The coffin-shaped church was once home to monks who slept in coffins.

An abandoned football stadium with a tragic past.

This Communist-era residential block is one of the longest residential building in Europe.

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

This enormous 32-foot painting depicts Poland's greatest medieval battle in glorious detail.

Modern art commemorates one of the first military actions of World War II.

A monument to Poland's famous alleged UFO abduction case.

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

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

A small granite monument marks where the borders of three countries meet.

In the midst of a living monument to Soviet social engineering, Polish Catholics built this church by hand.

Dubbed "Wistom" by locals, this abandoned factory is an urban explorer's dream.

Special benches that play Chopin's music are scattered throughout his native city.

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

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

One of only two places in the world where two rivers cross each other without the waters mixing.

Legend says this is actually a heartbroken prince waiting for his true love's kiss.

This antique thermometer honors the creator of the first universal temperature scale.

A tree planted by Marie Curie is treasured by the Radium institute that she set up.

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

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

This tower in a small Polish village uses the power of a sacred bell to ward off mischievous weather spirits.

The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.