Poland is famous for being the home of scientist Marie Curie, composer Frederic Chopin and astronomer Nicolaus Copernicus. Three of the most famous Nazi concentration camps were also located in Poland which are Belzec, Treblinka and Auschwitz-Birkenau. Several Nobel Prize winners also came from Poland. One of them was Lech Walesa, who won the Nobel Peace Prize in 1983. The country has had multiple winners in the literature category, with Henryk Sienkiewicz winning the award in 1905 and Wislawa Szymborska winning in 1996. The 1977 Nobel Prize in Physiology or Medicine was awarded to Andrew V. Schally. Schally was born in Poland, but the place where he was born was part of Belarus as of 2014. Bigos, one of Poland’s national dishes, is a kind of hearty stew that contains cabbage, mushrooms and various meats. Pierogis are a Polish staple that consists of dough filled with various ingredients, including cabbage, mushrooms, onions, cheese, potatoes, meats and many other fillings. The dough is fried or boiled and served hot. It is common to serve pierogis with sour cream.