Karim Khan Citadel - Credit: Wikimedia Commons
The Arg of Karim Khan (, Arg-e Karim Khān) or Karim Khan Citadel, is a citadel located in downtown Shiraz, Iran. It was built as part of a complex during the Zand dynasty. It is named after Karim Khan, and served as his living quarters. It is rectangular in shape and resembles a medieval fortress. In the past, the citadel was sometimes used as a prison. Today, it is a museum operated by Iran's Cultural Heritage Organization. Read more on Wikipedia
Source: en.wikipedia.org