Churches, as buildings and places of worship, play an important role in Europe’s cultural life through their material and intellectual heritage. The cross-border project HUSKROUA/1702/3.1/0057 “Ecclesiastical Cultural Heritage and Tourism Development in Nyíregyháza and Berehovo” aims at the preservation, cultural and tourism development of two important architectural sites of Hungary and Ukraine, which have been left as ecclesiastical heritage. Preserving the architectural and heritage values of church buildings, which also function as living community spaces, and developing them for tourism will help to ensure their wider use.