Located at the crossroads of several trade routes from the 2nd millennium B.C., Aleppo was ruled successively by the Hittites, Assyrians, Arabs, Mongols, Mamelukes and Ottomans. The 13th-century citadel, 12th-century Great Mosque and various 17th-century madrasas, palaces, caravanserais and hammams all form part of the city's cohesive, unique urban fabric, now threatened by overpopulation.

Ancient City of Bosra

Bosra, once the capital of the Roman province of Arabia, was an important stopover on the ancient caravan route to Mecca. A magnificent 2nd-century Roman theatre, early Christian ruins and several mosques are found within its great walls.

Ancient City of Damascus

Founded in the 3rd millennium B.C., Damascus is one of the oldest cities in the Middle East. In the Middle Ages, it was the centre of a flourishing craft industry, specializing in swords and lace. The city has some 125 monuments from different periods of its history – one of the most spectacular is the 8th-century Great Mosque of the Umayyads, built on the site of an Assyrian sanctuary.

Crac des Chevaliers and Qal’at Salah El-Din

These two castles represent the most significant examples illustrating the exchange of influences and documenting the evolution of fortified architecture in the Near East during the time of the Crusades (11th - 13th centuries). The Crac des Chevaliers was built by the Hospitaller Order of Saint John of Jerusalem from 1142 to 1271. With further construction by the Mamluks in the late 13th century, it ranks among the best-preserved examples of the Crusader castles. The Qal’at Salah El-Din (Fortress of Saladin), even though partly in ruins, represents an outstanding example of this type of fortification, both in terms of the quality of construction and the survival of historical stratigraphy. It retains features from its Byzantine beginnings in the 10th century, the Frankish transformations in the late 12th century and fortifications added by the Ayyubid dynasty (late 12th to mid-13th century).

Site of Palmyra

An oasis in the Syrian desert, north-east of Damascus, Palmyra contains the monumental ruins of a great city that was one of the most important cultural centres of the ancient world. From the 1st to the 2nd century, the art and architecture of Palmyra, standing at the crossroads of several civilizations, married Graeco-Roman techniques with local traditions and Persian influences.