Hadrianoupolis is located 3 km west of the modern town of Eskipazar, near Karabük, in Roman southwestern Paphlagonia. Excavation studies of Early Byzantine Church A and Bath Building A were conducted by a team directed by Assoc. Prof. Dr. Ergün Laflı from The Dokuz Eylül University in 2006. Excavation studies of Bath Building A were continued by the same team in 2007. Bath A is a monumental building which is located at the southern part of the city. The building was built at the end of 5th century A.D. and must have been in use until the beginning of 8th century A.D. A floor mosaic with geometric pattern which is dated 5th-6th century A.D. was discovered in a room called “The Room 11.” Early Byzantine Church A is located at 2,5 km east of the fortification walls of Byzantine Hadrianoupolis. The church is a basilical church with three naves in which there are remarkable floor mosaics dated first half of the 6th century. In the middle nave, several different animals were designed in curvilinear squares and frames