Falak al-Aflak Citadel on a hill near Khorramabad in Luristan province has become a city landmark. There were two courtyards and twelve towers inside the castle in the past, only eight of which have survived. Iran heritage organization renovated the castle’s exterior and interior in recent years.
Falak al-Aflak Citadel is an archaeological museum, anthropology, restoration laboratory, and a traditional teahouse. The architecture of the building is unique and well-known by world experts. The construction materials include stone, red and large bricks, clay and mortar, plaster, and lime. The pleasant climate of Khorramabad with torrential rains led to a particular dehumidification system in Falak al-Aflak Citadel.