Ghasr-e Bahram(Sassanid King Palace), in a conserved region named Kavir( desert) National Park ,as a part of Iran Central desert & one of Iran most important Caravansaries; not actually a palace, but a Caravansary( also named Seyah kouh-Black Mount). visiting the Caravansary and the other highlights such as a long stone .river(about 7 km), as one of the masterpieces of desert water supply, plus Stone Paved Road