Fodor's Expert Review Souk el-Henna
This little henna market is one of the medina's most picturesque squares, with a massive, gnarled fig tree in the center and rows of spices, hennas, kohls, and aphrodisiacs for sale in the tiny stalls around the edges. The ceramic shops on the way into the henna souk sell a wide variety of typically blue Fassi pottery. At the square's end is a plaque dedicated to the Maristan Sidi Frej, a medical center and psychiatric and teaching hospital built by the Merenid ruler Youssef Ibn Yakoub in 1286. Used as a model for the world's first mental hospital—founded in Valencia, Spain, in 1410—the Maristan operated until 1944.