The Arg-e Bam, located in the city of Bam, Kerman Province of southeastern Iran,
is the largest adobe building in the world. The entire building was a large fortress containing the citadel, but because the citadel dominates the ruins, the entire fortress is now named Bam Citadel.
Listed by UNESCO as part of the World Heritage Site "Bam and its Cultural Landscape", it can be traced back to at least the Achaemenid Empire. The citadel rose to importance from the seventh to eleventh centuries, as a crossroads along the Silk Road and other important trade routes, and as a producer of silk and cotton garments.On 26 December 2003, the Citadel was almost completely destroyed by an earthquake, along with much of the rest of Bam and its environs. A few days after the earthquake, the President of Iran, Mohammad Khatami, announced that the Citadel would be rebuilt.
Wikipedia https://en.wikipedia.org/wiki/Arg-e_Bam
Address Iran
Coordinates 29°6'55.962" N 58°22'7.197" E