Khaled Nabi’s Cemetery is located in the Golestan Province, 70 kilometers north of Gonbad’e Kavoos on the secondary road at the border of Turkmenistan. The cemetery is in close proximity to Khaled Nabi’s Mausoleum who is believed to have been a prophet from Yemen. It is generally believed that Khaled Nabi was the only prophet between Jesus and Muhammad and lived in the area approximately 1,600 years ago while the cemetery itself possibly goes back to the Mazdaki era in the 6th century. According to the notice board next to the main shrine Khaled Nabi was a fifth-century Nestorian Christian, and a most unlikely figure to pop up as the object of veneration to Sunni Muslims on Iran’s border with Turkmenistan.
One of the interesting and culturally amazing characteristics of this cemetery is its tombstones. The tombstones of the deceased, depending on their sex, are shaped as the female or male genital organs.