The Ahwar of Southern Iraq The Ahwar of Southern Iraq is a World Heritage Site which is composed of many areas – UNESCO calls it Refuge of Biodiversity and the Relict Landscape of the Mesopotamian Cities. The whole Ahwar is composed of three archaeological ruins and four wetlands. The ruins are called the Ur (which will be detailed later on as it is one of the most popular attractions in Iraq), the Uruk and the Tell Eridu. These sites were built more than 2016 years ago.