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

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

This picturesque castle in Poland has a rich history, including a legend that ties it to lost Incan treasures.

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

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

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

Polish luminaries and masterful folk art find sanctuary in this unique cemetery.

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.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

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.

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

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

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

The site of the first battle of World War II.

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