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

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

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

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

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

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

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

A bronze replica of an elm tree that honors the victims that perished in Pawaik Prison.

Once home to some 250,000 volumes and priceless art artifacts, this Polish estate was a target of bombing during World War II.

An artificial date palm stands as a memorial to Warsaw's Jewish community.

The world’s narrowest house makes for an awkward, four-foot-wide living space.

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

At night, this memorial illuminates a ghostly outline of a footbridge that connected two sections of the Warsaw Ghetto.

A delightful museum entirely dedicated to the tiny homes of dolls.

This museum houses and extensive collection of technology contributed by the Polish people.

A 20th-century picture show in 3-D.

A floundering Polish shipyard was once the soul of the Solidarity movement that capsized communism.

A relic of Poland's shipbuilding past, reborn as a sky-high lookout.

Gdańsk's lion mascot features in a trail of bronze sculptures scattered all across the city.

This 13th century Gothic brick castle is the largest in the world by surface area.

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

A merchant court dedicated to the fictitious King Arthur is heavily adorned with bizarre Renaissance art.

A mysterious emblem tucked in an small alleyway is actually the coat of arms of a heroic medieval family.

During the renovation of this bas-relief, the constructors added one unusual element.