 It was from this pit that the stone for both the local churches was drawn, as well as for the old Kaulbach schoolhouse and, at least for a considerable amount of the work, for the reconstruction of Alexander’s Church ("Alexanderskirche") in Zweibrücken after the Second World War.Both Kreimbach’s and Kaulbach’s southern limits touch Kaiserslautern.Above the quarries north of the Kreimbach, spreading across a high plateau, is the Heidenburg (“ Castle”), a prehistoric refuge castle or fortified living area where a tall lookout tower also stands.