Qal'at al-Bahrain is an archaeological site located in Bahrain. It is composed of an artificial mound created by human inhabitants from 2300 BC up to the 1700's. Among other things, it was once the capital of the Dilmun civilization, and served more recently as a Portuguese fort. For these reasons, it was inscribed as a UNESCO World Heritage Site in 2005. Qal'at al–Bahrain (also known as the Bahrain Fort or Portuguese fort) is an archaeological site and historic fort.
