A passageway in Najm Castle (Qalʿat Najm)

A passageway in Najm Castle (Qalʿat Najm)

A side from archaeological city of Dura Europos (Qalʿat as-Salihiyya)

A side from archaeological city of Dura Europos (Qalʿat as-Salihiyya)

Palmyra, Colonnaded axis and Qalʿat Ibn Mʿan in the back

Palmyra, Colonnaded axis and Qalʿat Ibn Mʿan in the back

The gate of south-western side, Dura Europos (Qalʿat as-Salihiyya)

The gate of south-western side, Dura Europos (Qalʿat as-Salihiyya)

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

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

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)

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

Excavation works, Dura Europos (Qalʿat as-Salihiyya)

Excavation works, Dura Europos (Qalʿat as-Salihiyya)

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

Qal‘at Shayzar ( Citadel), An Arabic inscription on top of the citadel entrance.

Qal‘at Shayzar ( Citadel), An Arabic inscription on top of the citadel entrance.

Qal‘at Shayzar (citadel), Archery road.

Qal‘at Shayzar (citadel), Archery road.

Qal‘at Shayzar ( Citadel), An Arabic inscription.

Qal‘at Shayzar ( Citadel), An Arabic inscription.

Qal‘at Shayzar ( Citadel), An Arabic inscription.

Qal‘at Shayzar ( Citadel), An Arabic inscription.

Qal‘at Shayzar (Citadel), the upper part of the entarnce.

Qal‘at Shayzar (Citadel), the upper part of the entarnce.

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

Excavation works, Dura Europos (Qalʿat as-Salihiyya)

Excavation works, Dura Europos (Qalʿat as-Salihiyya)

Dura Europos (Qalʿat as-Salihiyya), Roman amphitheater

Dura Europos (Qalʿat as-Salihiyya), Roman amphitheater

Restoration works at the Citadel of Damascus

Restoration works at the Citadel of Damascus

In the vicinity of a small town/village on the slope of a natural rock, possibly in the Afrin region

In the vicinity of a small town/village on the slope of a natural rock, possibly in the Afrin region

View from afar to al-Mudiq Citadel

View from afar to al-Mudiq Citadel

Byzantine decorated basalt stone reused in the construction of Qal‘at Shayzar

Byzantine decorated basalt stone reused in the construction of Qal‘at Shayzar

An inscription on the wall of Damascus Citadel

An inscription on the wall of Damascus Citadel

The northern wall of the Damascus Citadel

The northern wall of the Damascus Citadel

The North West Tower of Damascus Citadel

The North West Tower of Damascus Citadel

The northern wall of the Damascus Citadel

The northern wall of the Damascus Citadel

Stonework in the Citadel of Damascus

Stonework in the Citadel of Damascus