Auschwitz-Birkenau was the largest of the Nazi concentration and extermination camps during World War II.

The Palace of Culture and Science is a notable high-rise building in Warsaw, Poland.

The Wieliczka Salt Mine reaches a depth of 327 meters and is over 287 kilometers long.

Malbork Castle is the largest castle in the world measured by land area.

Łazienki Park, also known as the Royal Baths Park, is the largest park in Warsaw, Poland.

Wawel Castle is a castle residency located in central Krakow, Poland.

Belweder is a palace located in Warsaw, Poland, near the Royal Baths Park.

St. Mary's Basilica is a prominent church located in the heart of Krakow's Market Square.

The Centennial Hall is a historic building in Wrocław, Poland, constructed in 1913.

St. Mary's Church is one of the largest brick churches in the world.