of the historical find by laying cement blocks. The Divar defensive wall has also been known variously as Alexander Dam, Anushirvân Dam, Firuz Dam and Golestan's Defense Wall in various historical texts. Dr. Kiani, who led the archaeological team in 1971, believes that the wall was built during the Parthian dynasty, simultaneously with the construction of the Great Wall of China, and that it was restored during the Sassanid era (3rd to 7th centuries AD). Neolithic period During the Neolithic period, this area had many populated settlements. For example, Yarim Tepe (Iran). The Jeitun culture started before 6000 BC. Natural attractions Aji gol Lake Ala gol lake Alma Gol Lake Chehelchay Forest Golestan Forest Gonbad Horse Racing Center Colleges and universities Gonbad Kavous University Islamic Azad University of Gonbad Payamnoor University of Gonbad Notable people Sardar Azmoun Farhad Ghaemi Parham Maghsoodloo Magtymguly Pyragy Shahpour Turkian Mohsen Yeganeh See also Decagon Iranian Turkmen Iranian Art Museum Garden, which includes a replica of the Gonbad-e Kavus tower. Notes References External links Iran plans to begin preservation work on the tower. Populated places in Gonbad-e Kavus County Cities in Golestan Province Persian words and phrases