What is the fine-grained topic of the following text: Romanian, orthodox Churches of Moldavia are located in, suceava County, northern Moldavia, ( Bukovina ) and were built approximately between 14Dacian Fortresses of the Ortie Mountains - The six fortresses ( Sarmizegetusa Regia, Costeti-Cetuie, Costeti-Blidaru, Piatra Roie, Bnia and Cplna ) that formed the defensive. Only return the topic.
Historical Orthodox Churches and Fortresses in Romania