Zerzevan Castle located in Diyarbakır has been recently nominated for UNESCO World Heritage List. The 3000 years old archaeological site is now in the tentative list of UNESCO. The tentative list provides a forecast of the properties that may be submitted for inscription in the next five to ten years. If it is to happen, Diyarbakir will be the first city in Turkey having two UNESCO`s World Heritage Sites within its borders.
Zerzevan Castle archaeological excavations and restoration studies have been carried out since 2014 and are still going on. The observation-defiance tower, walls, Mithras temple, underground shelter, church, military-civilian buildings, underground sanctuary, altars, rock tombs, water channels, etc. which were discovered in the excavations in the military settlement of the Roman Period, located just beside the main road o the Diyarbakir-Mardin highway.

The other four sites entered to the UNESCO”s tentative list for world heritage as follows:
○ Beypazarı Ancient City/Ankara
○ İzmir Ancient Harbour City/İzmir
○ Karatepe-Arslantaş Archeological Site/Osmaniye
○ Koramaz Valley/Kayseri
