About Gonbad-e Harounieh in Khorasan province

 In the vicinity of Mashhad, in the town of Tus, the birth place of Iran`s great epic poet Ferdowsi, there is a quadrangular mausoleum covered with a cupola, whose construction has been attributed to the 8th century A.H. (14th century A.D.).
The cupola is of the double- covering type and is made of kin-fired brick. The interior of the monument is simple and undecorated. There is a mihrab with plaster moldings in the northern part of the hall.
Above the main wall of the structure, there are a number of chambers, reminiscent of the construction of the mausoleum of Sultan Sanjar and Oljaitu.