A few weeks ago, I went to the Bahram Castle, a Caravansary located at the National Park of Kavir in the central desert of Iran.
The Bahram Castle is a Royal caravansary, in the way of north from Esfahan to the Caspian Sea coast. There is the remains of the royal Harem, beside the Castle, and a wonderful canal which brought the water from Cheshmeh Shahi Spring about 7 Km at the south of the Castle, and remains of a road built on the wetlands of the desert using char coal to reduce the density of the road and keep it up in rainy seasons.