Try not to get slimed in Tribeca.

The fantastic architectural models of a French traveler.

This extremely narrow tenement boasts a maximum occupancy of just two.

"There's nothing there," and other lies the KGB told us.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

A statue honors the children who fought Nazis in Poland.

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

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

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

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

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.

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

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

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

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

A national collection of Communist-era musical posters.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

A hidden art gallery in an abandoned Warsaw fort.

Warsaw's fantastically preserved gasworks...almost.

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

A program of Communist glamour in post-Stalin Poland is preserved in this colorful museum.

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.