Sinop is one of the important destinations in Black Sea region. It was named as Sinope in the ancient era. Also it is known as home of philosopher Diogenes. In addition to those features, Balatlar church complex which was located nearby the northern end of peninsula was an important religious center in ancient era.
This building was used as bath in earlier ages (around 3rd or 4th century AD). It is known as it was turned into a church in 5th century AD. This church was decorated with various buildings to form a complex. The sacred relic of the church was the piece of Jesus’ cross. Byzantines were here, we know this by the existence of Byzantine coin. It was used till Ottoman period.
This church complex was the sample of typical Roman and Byzantine religious center. With its complex, it was also a settlement area.