Images of the ghost town Al-Ula, or al-Deera in the Kingdom of Hejaz, formally in the Islamic State of Arabia and the Kingdom of Saudi Arabia (and the original Hashemite Kingdom of Hejaz before its conquest by Saudi Arabia in 1925).
The town of Al-Ula or al-Deera was originally constructed in the 13 Century AD and was located along an old incense trade route. During the rule of the Mad Mulla and the Islamic State of Arabia, the approximately 800 person population of the town was totally wiped out and exterminated. As with many other abandoned towns in the former ISA/Saudi Arabia, it is not entirely clear how this happened, as the government of the ISA did not keep extensive records on its activities, and those that they did keep were mostly destroyed after the fall of the ISA in 1969. However, it is most likely that the killings in a town happened gradually and then the last of the residents of the town were all killed. The latter evidence comes from the testimony of local Bedouins, recorded by Turkish soldiers, who claimed that the whole population of the town was killed on one night in the Islamic year of 1386 (1966-1967 AD), with no survivors. The same Turkish soldiers inspected the town and found blood stains on many buildings, which seemed to corroborate the story of the Bedouins. They also found Arabic graffiti on many of the buildings which read words such as "Sinner", "Sodom" and "Infidel."
Why exactly the Mad Mulla's men decided to kill the residents of the town is mystery to this day. Some historians have suggested that the was a black market of foreign goods coming into the town from Israel or over the Red Sea from Italian East Africa or that Sufism was practiced in the town in defiance of the Mad Mullah. Whatever the case, the world may never know.