Chor Minor, also known as the Madrasah of Khalif Niyaz-kul, is a historic gatehouse in Bukhara, Uzbekistan. Built in 1807, it once formed part of a madrasa complex. The structure features four distinctive towers, each with unique decorative motifs. These towers are not minarets; three served as storage, and one contains a staircase. The main building functioned as a mosque and included living quarters. Today, Chor Minor stands surrounded by homes and small shops.