The Church of the Assumption of Holy Mary and St. Michael's Archangel in Haczów (Poland), the oldest wooden Gothic temple in Europe, was erected in the 14th century and was added to the UNESCO list of World Heritage Sites in 2003.
Its original name was Holsztyn, which is a Polonized version of a German word Holstein (or Hohlenstein); the name refers to German settlers, who founded the village in the Middle Ages (see Ostsiedlung, Walddeutsche).