Khorramabad
Falak ol aflak castle
Situated on the top of a large hill with the same name within the city of Khorramabad, the regional capital of Lorestan province, this Sassanid castle is a remaining from “Shāpūr-Khwāst” ancient city. The height of the entire structure, including the hill, reaches to 40 meters above the surrounding area. The initial building of the castle is attributed to the reign of Sassanid Shapur I in century 3 AD.