Part of the walls, Qalʿat Harim

Part of the walls, Qalʿat Harim

Jaʿbar castle, southern side of the castle

Jaʿbar castle, southern side of the castle

at-Tabqa, Jaʿbar Castle, polygonal tower.

at-Tabqa, Jaʿbar Castle, polygonal tower.

At-Tabqa , Minaret of the Mosque at Jaʿbar Castle.

At-Tabqa , Minaret of the Mosque at Jaʿbar Castle.

The northern entrance of the historical city of Dura Europos (Qalʿat as-Salihiyya), end of 4th century BC

The northern entrance of the historical city of Dura Europos (Qalʿat as-Salihiyya), end of 4th century BC

Jurn Kabir, a typical old house of the Euphrates valley near Qalʿat Najm with a large log (willow) transverse to the longitudinal axis.

Jurn Kabir, a typical old house of the Euphrates valley near Qalʿat Najm with a large log (willow) transverse to the longitudinal axis.

A general view of the remains of Shayzar Castle

A general view of the remains of Shayzar Castle

At-Tabqa, Jaʿbar Castle , one of the Castle's towers.

At-Tabqa, Jaʿbar Castle , one of the Castle’s towers.

At-Tabqa , Jaʿbar Castle, Bastion with loopholes.

At-Tabqa , Jaʿbar Castle, Bastion with loopholes.

At-Tabqa, Jaʿbar Castle, Entrance of a bastion with loopholes

At-Tabqa, Jaʿbar Castle, Entrance of a bastion with loopholes

The northern entrance of the historical city of Dura Europos (Qalʿat as-Salihiyya), end of 4th century BC

The northern entrance of the historical city of Dura Europos (Qalʿat as-Salihiyya), end of 4th century BC

Machicolations on the wall of Damascus Citadel

Machicolations on the wall of Damascus Citadel

Part of the of the city wall of Damascus

Part of the of the city wall of Damascus

Part of Damascus city wall topped by a house balcony

Part of Damascus city wall topped by a house balcony

A small pathway in the Ghuta of Damascus

A small pathway in the Ghuta of Damascus

General view of defensive tower to the north of city gate Bab Antakiya

General view image

Walls b & c, room 07, diagonal view with floor & ceiling

Room 07 with code P01.L00.07.00.Xc-d

Tall al-Mishrifa (ancient Qatna), view of the historic citywall, within which the village is located

Tall al-Mishrifa (ancient Qatna), view of the historic citywall, within which the village is located

Mud bricks, prepared for the restoration of ar-Raqqa Wall

Mud bricks, prepared for the restoration of ar-Raqqa Wall

Raqqa - Madinat ar-Rafiqa wall - Columns discovered during excavation

Raqqa – Madinat ar-Rafiqa wall – Columns discovered during excavation

Tower north of Bab Antakiya. The inscription indicates a restoration by the Mamluk ruler al-Malik al-Muʾayyad Shaykh between 820/1417 and 823/1420

Tower north of Bab Antakiya. The inscription indicates a restoration by the Mamluk ruler al-Malik al-Muʾayyad Shaykh between 820/1417 and 823/1420

Remains of ar-Raqqa Wall built of mud brick

Remains of ar-Raqqa Wall built of mud brick

Part of Damascus City Wall to the east of the city

Part of Damascus City Wall to the east of the city

Part of the city wall of ar-Raqqa after the restoration

Part of the city wall of ar-Raqqa after the restoration

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, the ruin of the twin crusader castle

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, the ruin of the twin crusader castle

Raqqa - Madinat ar-Rafiqa wall - one of the wall tower

Raqqa – Madinat ar-Rafiqa wall – one of the wall tower

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, the trail around the two castles

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, the trail around the two castles

Jisr ash-Shughur, the ruins of Qalʿat ash-Shugr wa-Bakas, a twin crusader castle

Jisr ash-Shughur, the ruins of Qalʿat ash-Shugr wa-Bakas, a twin crusader castle

Jisr ash-Shughur, the ruins of Qalʿat ash-Shugr wa-Bakas, a twin crusader castle

Jisr ash-Shughur, the ruins of Qalʿat ash-Shugr wa-Bakas, a twin crusader castle

Qalʿat ash-Shugr wa-Bakas, the connection bridge between the two castles

Qalʿat ash-Shugr wa-Bakas, the connection bridge between the two castles