Here are some pictures of the ancient Bojnourd Bulbul Hill; one of the oldest archaeological sites in northeastern Iran, dating back over 3,000 years. This hill is located southeast of Bojnourd city and the artifacts discovered there include pottery, stone tools, and architectural remains that indicate human habitation in the prehistoric era in this area. Bulbul Hill was registered in 1346 with number 707 on the National Monuments List of Iran. Notable features of Bulbul Hill: - Historical date: Late 2nd millennium and early 1st millennium BC - Archaeological importance: Discovery site of early civilizations in North Khorasan