Kalyan Minaret has a double: in the mid­dle of the 12th century one of Bako's tal­ented pupils built a similar minaret in Vab- kent—a town near Bukhara. It is a well- balanced 39 meters high brick tower. Vabkent Minaret as well as Kalyan is crowned with a fine arch named "lamp” by analogy with lighthouse ("minaret” goes from Ara­bian "manara"—a place of burning fire, lighthouse). With its size and harmony these two Bukhara minarets defined value and status of minarets in Central Asian architecture as a symbol of Islamic cult