Gerger

Gerger (, ) is a town and a district of Adıyaman Province of Turkey. The mayor is Zeynal Aslan (SP).
History.
According to some sources, in the first half of the 6th Century BCE, during the reign of King Seleucus Arsemes, a city named Arsemia was built on the Euphrates. As this city still has Gerger Castle. Arsemia Kommagene down with the king, the city used as winter time.
This area during the Byzantine Empire changed hands. On these dates, the general public of the Christian religion is based on the Gregorian sectarian, in the year 135 Hijri the caliph Abu Jafar-Abbes el Mansur's Adiyaman, Kahta and the conquest see here are together Samsatla.
According to The Geographical Journal in 1896, Gerger had 750 inhabitants with most being Kurds, with the exception of few Officials and Armenians. 
In 2018, archaeologists discovered a cave which used during religious ceremonies by Christians during the Byzantine period. Cross figures found inside the cave.