One of the world's largest amber altarpieces is housed within this reconstructed medieval church.

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

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

The final resting place of more than 200,000 people, this is one of the largest cemeteries in Europe.

A national collection of Communist-era musical posters.

Warsaw's fantastically preserved gasworks...almost.

A hidden art gallery in an abandoned Warsaw fort.

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

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

A huge wooden clock that is so beautiful its creator was forcibly blinded.

Memorial to the lost dead of Gdansk, whose resting places were destroyed during World War II.

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

This 700-year-old structure is one of the most unique architectural and historic monuments in Gdańsk.

The site of the first battle of World War II.

Atop this library is one of the most beautiful green spaces in Warsaw.

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

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

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

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

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.

Inside this Krakow church, an explosion of psychedelic color.

The unsettling remnants of a torn down movie set lies nearby the ruined location of the actual Płaszów Labor Camp.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

This Polish cave has housed a dragon, a brothel, and an enduring legend.