This lovely little building tucked away in the shadow of Hagia Sophia was designed by Ottoman architect Mimar Sinan on the orders of Cafer Aga, Suleyman the Magnificent chief black eunuch. Built in 1560 as a school, it now houses a cultural organization that teaches and promotes traditional Turkish handicrafts. The courtyard is home to the pleasant Caferaga Medresesi Cay Bahcesi tea garden.