There are public buildings located in the southern part of the settlement which is the higher part of the settlement. One of the most well-preserved public buildings in the city is the church with four spaces in the east-west direction. There is a church built in the 6th century AD at the highest point of the settlement to which it is entered from the courtyard in the south, and there is a baptistery pool inside the structure. A bronze bucket found in Zerzevan Castle is currently exhibited in the Istanbul Archaeological Museum. The bucket on which “ΥΠΈΡ ΕΥΧΉC ΚΑΙ CΩΤΗΡIΑC ΑΝΤΙΠAΤΡΟΥ ΚΑΙ ΠΑΝΤOC ΤΟY ΟIΚΟΥ ΑYΤΟY ΚYΡΙΟC ΦΥΛAΞΙ CΑΙ (For acceptance of the wish -or offering- of Antipatros and his family and for their salvation. God bless you)” is written in Ancient Greek and which belongs to the church is from the 6th century.