A small island dotted with old, historic Finnish buildings.

This statue and park honor the Swedish chemist Jacob Berzelius, one of the founders of modern chemistry.

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

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

Finland's oldest astronomical observatory once played a crucial role in seafaring and timekeeping.

Legend says a giant, venomous spider once dwelled within this Polish church.

A menacing statue of this mythical creature can be seen at the legendary site of the monster's lair.

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

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

The portrait of a man from Japan who sent weekly letters to a Dutch hotel he never visited.

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.

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.

A Japanese video game arcade hides in the back of a Swedish pool hall.

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

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

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

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

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

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

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

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

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

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.