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

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

at-Tabqa, Jaʿbar Castle, Towers of western walls

at-Tabqa, Jaʿbar Castle, Towers of western walls

at-Tabqa, Jaʿbar Castle, Towers of western walls

at-Tabqa, Jaʿbar Castle, Towers of western walls

at-Tabqa, Jaʿbar Castle, polygonal tower.

at-Tabqa, Jaʿbar Castle, polygonal tower.

Jaʿbar castle, southern side of the castle

Jaʿbar castle, southern side of the castle

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

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

General view of Jaʿbar castle

General view of Jaʿbar castle

General view of Masyaf Castle

General view of Masyaf Castle

Hama, General view of al-Madiq castle from the southern side

Hama, General view of al-Madiq castle from the southern side

Remains of Islamic Jaʿbar castle

Remains of Islamic Jaʿbar castle

Remains of Islamic Jaʿbar castle

Remains of Islamic Jaʿbar castle

A general view of the remains of Shayzar Castle

A general view of the remains of Shayzar Castle

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, a twin crusader castle, caves

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, a twin crusader castle, caves

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, a twin crusader castle, cave

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, a twin crusader castle, cave

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, a twin crusader castle, Arabic inscription

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, a twin crusader castle, Arabic inscription

Tartus, Qalʿat al-Marqab, Crusader castle, general view from the Castle.

Tartus, Qalʿat al-Marqab, Crusader castle, general view from the Castle.

Qalʿat al-Mudiq seen from the ruins of Afamiya

Qalʿat al-Mudiq seen from the ruins of Afamiya

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

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

Tartus, Qalʿat al-Marqab, Crusader castle, a courtyard in the castle.

Tartus, Qalʿat al-Marqab, Crusader castle, a courtyard in the castle.

View on the Euphrates River from the site of Dura Europos (Qalʿat as-Salihiyya)

View on the Euphrates River from the site of Dura Europos (Qalʿat as-Salihiyya)

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, a twin crusader castle, general view of the site

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, a twin crusader castle, general view of the site

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, a twin crusader castle, stone arch

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, a twin crusader castle, stone arch

Jisr ash-Shughur, Qalʿat Shugr wa Bekas from the inside.

Jisr ash-Shughur, Qalʿat Shugr wa Bekas from the inside.

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, twin crusader castles, stone arch

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, twin crusader castles, stone arch

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, a twin crusader castle, Arabic inscription

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, a twin crusader castle, Arabic inscription

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, a twin crusader castle, stone arches

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, a twin crusader castle, stone arches

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, a general view of the the valley around the twin castle

Jisr ash-Shughur, Qalʿat ash-Shugr wa-Bakas, a general view of the the valley around the twin castle

Euphrates valley south of Qalʿat Najm as it looked before the flooding of lake Tishrin

Euphrates valley south of Qalʿat Najm as it looked before the flooding of lake Tishrin

Krak des chevaliers (Qalʿat al-Husn), Gothic vaults

Krak des chevaliers (Qalʿat al-Husn), Gothic vaults