The buildings of the John Paul II Centre (CJPII) are located in Kraków-Łagiewniki on a heap of limestone sediments from the former “Solvay” Sodium Plant in Kraków. The area is called Białe Morze (White Seas) and is located in the natural depression of the Wil-ga river valley, between św. Józefa hill in the north and Góra Borkowska hill in the south-west. The limestone sediments as a building substrate for CJPII buildings is unprecedented ground in the world and thus a challenge for civil engineering. The symbolism of the urban complex (e.g. the scale of the market square in Wadowice) located on a system of 200 piles, above the post-industrial landfill/heaps of sediments – ensuring its protection by architectural solutions referring to places connected with the life of JPII (the Wawel Cathedral, St. Mary’s Basilica in Kraków) with the adopted natural material solutions (brick and white stone) recalling the ways of combining them, and used on the facades of the emerging JPII buildings.