Narin Castle is a mud-brick fort or castle in Meybod, Yazd Province. Structures like this constituted the government stronghold in some of the older (pre-Islamic) towns of central Iran. The ruins of the structure stand 40 meters high from its base. Although built some 2000 years ago, it contains what seems to be a type of plumbing system made out of mortar (Sarooj) built into its massive walls. It is also especially similar in design to Ali Qapu Palace in Isfahan, it has a terrace high on top of the structure whose circulation is provided by two spiral stairwells. The structure also has a large underground hall that is filled by rubble now. Four towers surround the entire compound and a large gate is the access to a large courtyard. Some believe that the Narin Castle is descendant of an ancient fire-temple. Alaedin Travel can accompany you to visit this historical city and make you an unforgettable journey by booking you a perfect Iran tour package.