 Another influence may have been the octagonal Dome of the Rock in Jerusalem, not a mausoleum itself, but "the earliest Islamic model for centrally planned commemorative buildings", adapting the Byzantine form of the martyrium in a building standing alone, though on a stone platform rather than in a garden.In the Persian sphere, a tradition of relatively small mausoleums evolved, often in the shape of short hexagonal or octagonal domed towers, usually containing a single chamber, like the Malek Tomb.These single-chambered tombs developed into larger buildings in the Timurid and Mughal Empires, like the Gur-e Amir tomb of Timur at Samarkand and the famous Mughal tombs of India, which culminated in the Taj Mahal.