Arg-é Bam is a citadel located in Bam, a city in the Kerman Province in the south-eastern part of Iran. This citadel was built entirely out of adobe unbaked clay bricks, and it is often regarded as the largest structure built with this material in the world. In 2003, a powerful earthquake struck the city of Bam, and much of the citadel was destroyed.The origins of Bam can be traced back to the Achaemenid period (6th to 4th centuries BC). Its heyday was from the 7th to 11th centuries, being at the crossroads of important trade routes and known for the production of silk and cotton garments. The existence of life in the oasis was based on the underground irrigation canals, the qan?ts, of which Bam has preserved some of the earliest evidence in Iran.
