Instantly recognisable by its conical turquoise dome, the Sultan Tekesh Mausoleum is one of Konye Urgench's most beautiful monuments. Tekesh was the 12th-century Khorezmshah who made Khorezm great with conquests as far south as Khorasan (present-day northern Iran and northern Afghanistan). It is believed that he built this mausoleum for himself, along with a big medressa and library (which did not survive) on the same spot. However, some scholars theorise that the building had earlier existed as a Zoroastrian temple.
After his death in 1200, Tekesh was apparently buried here, although there is no tomb. There are excavations of several early Islamic graves near the entrance to the building.