Liban is the colloquial name of a quarry established in 1884 in Krzemionki Podgóskie by the company “Wapienniki i Kamieniołomy Liban i Ehrenpreis S.A.”. In 1942-1944, the Germans organised a cruel penal camp there. The conditions were very harsh and many people died because of this. The prisoners did not have any medical help, they worked day and night and starved. Many of them were shot by the Nazis. In 1948, a monument commemorating the victims of Nazism was unveiled nearby.