The Ishrat Khana, or House of Joy, lies over the road from Abdi Darun. Legend suggests a wife of Tamerlane built it as her tomb, but it became a pleasure palace once the ruler embraced her in awe at its beauty. The vanished opulence of its interior decor explains the joyous epithet-gold leaf, multicolour mosaic and stained glass-yet it was built as a mausoleum in 1464 by the wife of Tamerlane's great-grandson Abu Said for their favourite daughter. Over 20 tombstones of Timurid women and children occupy the crypt. Above ground the impressive portal, a survivor of the f904 earthquake that claimed the high turquoise dome, leads to a cruciform hall once flanked by two-storey galleries. Two of four spiral staircases still permit a rooftop panorama.