Qal'at al Bahrain

The Qal'at al-Bahrain (in Arabic: قلعة البحرين‎, also known as the Bahrain Fort or Fort of Bahrain and previously as thePortugal Fort (Qal'at al Portugal) as well as the fort of Nader Shah, the Persian king)[1] is an archaeological site located inBahrain. Archaeological excavations carried out since 1954 have unearthed antiquaries from an artificial mound of 12 m height containing seven stratified layers, created by various occupants from 2300 BC up to the 18th century, includingKassites, Portuguese and Persians. It was once the capital of the Dilmun civilization and was inscribed as a UNESCO World Heritage Site in 2005.  (source : WikipediA)