Diyarbakır Fortress and Hevsel Gardens became a UNESCO World Heritage site in 2015. Their shared designation brings together the walls surrounding the historic city and the gardens between those walls and the Dicle River. The connection is practical as well as historical. The fortress defended the settlement. The gardens helped supply its food and water.
When you explore this cultural landscape, the walls provide only part of the story. İçkale, Amida Höyük, the outer fortifications, Hevsel Gardens, the Dicle River and Valley, and On Gözlü Köprü all belong to the UNESCO property. Together, they connect defense, cultivation and the changing uses of buildings within the city.
Diyarbakır Fortress
Diyarbakır Fortress surrounds the historic center of the Sur district in Diyarbakır, Türkiye. It has two principal parts. İçkale forms the inner citadel. Dışkale forms the outer defensive circuit. Keeping these names in mind helps you distinguish the citadel from the longer walls enclosing the historic center.
The outer circuit has four main entrances: Dağ Kapı, Urfa Kapı, Mardin Kapı and Yeni Kapı. These gates give specific reference points within the fortifications. Mardin Kapı and Yeni Kapı also help explain the position of Hevsel Gardens beyond the walls.
ICOMOS measures the outer walls at 5,200 meters. Including the İçkale walls, the full defensive system extends for 5,800 meters. These figures describe different parts of the same complex. The larger measurement includes the inner citadel walls as well as the outer circuit.
Dışkale contains 82 towers and bastions. Their forms include square, circular and polygonal structures. The defenses therefore contain several architectural shapes within one enclosing system. The walls served the city’s defensive needs and continued to perform that role through the Ottoman period.
How old are the fortress walls?
The Ministry of Culture and Tourism records a major expansion in AD 349. During the reign of the Roman emperor Constantius II, the walls were extended and the fortress strengthened. The ICOMOS assessment places the outer circuit’s present extent in the Roman period, during the fourth century AD.
That Roman framework received repeated repairs. Work took place during the Artuklu, Akkoyunlu, Seljuk, Ottoman and Republic periods. The surviving fortress consequently carries evidence of several periods of maintenance. Its history includes the continued repair of an existing defensive system.
Two gates preserve a particularly precise record. Inscriptions at Dağ Kapı and Mardin Kapı document their rebuilding in 909. The work followed the order of the Abbasid caliph al-Muqtadir. Here, writing on the structure connects a named ruler, a date and a specific building intervention.
The Yedi Kardeş and Ulu Beden bastions belong to another dated phase. The Artuklus built them in 1208–1209. Their decoration includes inscriptions, animals and mythological creatures. These bastions bring architectural construction and carved imagery into the same historical record.
Diyarbakır Fortress and Hevsel Gardens
Hevsel Gardens occupy the land between the city walls and the Dicle River. They historically formed a green connection supplying Diyarbakır with food and water. Their relationship with the fortress explains why the UNESCO designation joins defensive architecture with cultivated land.
The gardens extend from the vicinity of Mardin Kapı toward On Gözlü Köprü in the south and Yeni Kapı in the east. These named points give the landscape a readable arrangement. You can understand the gardens through their relationship with the gates, the bridge and the river.
For an everyday connection, think about the fruit and vegetables you buy for your kitchen. Until the 1960s, Hevsel Gardens supplied the city’s population with those foods. That fact brings the landscape into the routine of preparing meals. Cultivation supported daily urban life beside the defensive walls.
Water linked several activities in this landscape. The Anzele spring irrigated Hevsel Gardens and powered mills outside Mardin Kapı. Its role connected growing food with milling. The same water source supported more than one part of the city’s food supply.
Why did UNESCO recognize the cultural landscape?
The World Heritage Committee inscribed Diyarbakır Fortress and Hevsel Gardens Cultural Landscape in 2015. Decision 39 COM 8B.32 records the inscription under criterion iv. The property carries reference number 1488. Its earlier inclusion on the Tentative List dates to 25 February 2000.
The inscribed property covers 521.23 hectares. Its surrounding buffer zone covers 1,660.57 hectares. UNESCO’s description includes İçkale and Amida Höyük alongside the outer walls, gardens, river and valley, and On Gözlü Köprü. The protected landscape therefore extends beyond the masonry of the fortress.
UNESCO’s integrity assessment also records the demolition of part of the walls in 1930. This loss belongs to the site’s documented history alongside its construction and repairs. The present defensive system preserves substantial historical fabric while also carrying evidence of that removal.
Reading the fortress through its materials
Local basalt was used to build the walls. Brick appears in the domes and vaults of the bastions. Some inscriptions use limestone. These material differences connect particular building elements with different construction choices within the same fortress.
UNESCO records 63 inscriptions from different historical periods on the walls. These texts add another layer to the architectural evidence. Alongside the forms of the towers and the dated rebuilding of gates, they preserve written traces of the fortress’s long use.
Details you won’t find in guidebooks
The wall inscriptions include Greek and Latin examples. Dağ Kapı also has Syriac inscriptions. The written record therefore extends across several languages. At this gate, the history of the fortifications includes both their physical construction and the languages preserved on them.
Inside İçkale, a building constructed as an Artuklu caravanserai in 1203 later served very different purposes. It became a prison in 1890. In 2014, it became a museum collection store. Those dates trace successive uses of one building within the citadel.
A find from Amida Höyük adds a later historical connection to the excavation area. On 21 November 2024, Dicle University announced the discovery of a badge associated with the Çanakkale War. The announcement concerned the Artuklu Palace excavation. The find places an object connected with that war within the site’s archaeological record.
İçkale, the museum and Amida Höyük
Diyarbakır’s first museum opened in 1934 at Zinciriye Medresesi, near Ulu Cami. The İçkale complex of Diyarbakır Archaeology Museum occupies an area containing 14 registered buildings. These facts connect the city’s museum history with the later use of the citadel’s built spaces.
For your museum itinerary, the İçkale complex’s address is Cevat Paşa Mahallesi, Hz. Süleyman Caddesi No:43, in Sur. The complex sits within the inner citadel component of the wider landscape. This places the museum within the fortress setting discussed throughout the site’s history.
Excavations at Amida Höyük have continued since 2018 under Prof. Dr. İrfan Yıldız of Dicle University. Amida Höyük is also part of the UNESCO property. Archaeological work and the museum complex bring investigation and the care of collections into the same citadel setting.
Timeline
- AD 349: The walls were expanded and the fortress strengthened under Constantius II.
- 909: Dağ Kapı and Mardin Kapı were rebuilt on the order of the Abbasid caliph al-Muqtadir.
- 1203: An Artuklu caravanserai was built in İçkale.
- 1208–1209: The Artuklus constructed the Yedi Kardeş and Ulu Beden bastions.
- 1890: The İçkale caravanserai became a prison.
- 1930: Part of the city walls was demolished.
- 1934: Diyarbakır’s first museum opened at Zinciriye Medresesi.
- 25 February 2000: The site entered the UNESCO Tentative List.
- 2014: The former caravanserai and prison became a museum collection store.
- 2015: Diyarbakır Fortress and Hevsel Gardens Cultural Landscape entered the World Heritage List.
- 2018 onward: Amida Höyük excavations have continued under İrfan Yıldız.
- 21 November 2024: Dicle University announced the Çanakkale War badge find from the Artuklu Palace excavation.
FAQ
Where is Diyarbakır Fortress?
Diyarbakır Fortress surrounds the historic city center in the Sur district of Diyarbakır, Türkiye. It consists of İçkale, the inner citadel, and Dışkale, the outer wall circuit.
When did Diyarbakır Fortress and Hevsel Gardens become a UNESCO site?
The cultural landscape entered the UNESCO World Heritage List in 2015 under criterion iv, with reference number 1488. It had entered the Tentative List on 25 February 2000.
How long are the walls of Diyarbakır Fortress?
ICOMOS records the outer walls at 5,200 meters. Including the İçkale walls, the complete system measures 5,800 meters. The outer circuit contains 82 towers and bastions.
Why are Hevsel Gardens part of the same UNESCO site?
Hevsel Gardens lie between the city walls and the Dicle River. They historically supplied the city with food and water, preserving the relationship between the defended settlement and its productive landscape.
Sources
- UNESCO World Heritage Centre — Diyarbakır Fortress and Hevsel Gardens Cultural Landscape whc.unesco.org
- UNESCO World Heritage Committee — Decision 39 COM 8B.32 whc.unesco.org
- ICOMOS — Evaluation of Nomination 1488 whc.unesco.org
- Ministry of Culture and Tourism — Diyarbakır Castle and Fortress ktb.gov.tr
- Kültür Portalı — Diyarbakır Surları kulturportali.gov.tr
- General Directorate of Cultural Heritage and Museums — Diyarbakır Museum Directorate kvmgm.ktb.gov.tr
- Wikipedia — Diyarbakır Kalesi tr.wikipedia.org
- Wikipedia — Fortifications of Diyarbakır en.wikipedia.org
Image: Diyarbakır İçkale Inner Fortress walls 7825 in 2010.jpg — Dosseman, CC BY-SA 4.0
