Qal’at al-Bahrain is a typical tell – an artificial mound created by many successive layers of human occupation. The strata of the 300 × 600 m tell testify to continuous human presence from about 2300 BC to the 16th century AD. About 25% of the site has been excavated, revealing structures of different types: residential, public, commercial, religious and military. They testify to the importance of the site, a trading port, over the centuries. On the top of the 12 m mound there is the impressive Portuguese fort, which gave the whole site its name, qal’a (fort). The site was the capital of the Dilmun, one of the most important ancient civilizations of the region. It contains the richest remains inventoried of this civilization, which was hitherto only known from written Sumerian references.

Brief synthesis Qal'at al-Bahrain: Ancient Harbour and Capital of Dilmun is an archaeological site comprising four main elements: an archaeological tell (an artificial hill formed over time by successive occupations) of over 16 hectares, immediately adjacent to the northern coast of Bahrain; a sea tower about 1600m North-West of the tell; a sea channel of just under 16 hectares through the reef near the sea tower, and palm-groves. The palm-groves and traditional agricultural gardens surround the site within the whole area of the land component of the buffer zone, being particularly noticeable on the Western and Northern sides, but also occurring on the Eastern and South-Eastern sides. The property is situated in the Northern Governorate, in Al Qalah village district on the northern coast about 5.5 km West of Manama, the present capital of Bahrain. Qal'at al-Bahrain is an exceptional example of more or less unbroken continuity of occupation over a period of almost 4500 years, from about 2300 BC to the present, on the island of Bahrain. The archaeological tell, the largest known in Bahrain, is unique within the entire region of Eastern Arabia and the Persian Gulf as the most complete example currently known of a deep and intact stratigraphic sequence covering the majority of time periods in Bahrain and the Persian Gulf. It provides an outstanding example of the might of Dilmun, and its successors during the Tylos and Islamic periods, as expressed by their control of trade through the Persian Gulf. These qualities are manifested in the monumental and defensive architecture of the site, the wonderfully preserved urban fabric and the outstandingly significant finds made by archaeologists excavating the tell. The sea tower, probably an ancient lighthouse, is unique in the region as an example of ancient maritime architecture and the adjacent sea channel demonstrates the tremendous importance of this city in maritime trade routes throughout antiquity. Qal'at al-Bahrain…