Another interesting place worth visiting in Poland is Skull Chapel (Polish: Kaplica Czaszek) in Czermna, Lower Silesia (Dolnośląskie). The walls and ceiling of the chapel are covered by over three thousand of the skulls and bones of people who mostly died or were killed in the Thirty Years War in the 17th century or the Silesian Wars of the mid 18th century. A strange place in every way but one of the must see places to visit in Poland!
More information on the Czermna and Kudowa-Zdrój area of Lower Silesia, Poland.