It is located in the first of Bazaar. It consists of a main terrace and four smaller ones, which are symmetrically placed around the main terrace and possess doorways to inside; two minarets in to corners of the building; a square space with 4 arches in the center; a small square chamber in the East; halls and walkways on the sides; a high tiling dome (doubled) with cornices and paintings on the body.

This building was built in 1435 AD, by Iranian architect "Shamseddin Mohammad Tabrizi" and its distinction is its tiles and cornices. Wall coverings are decorated with attractive mosaic tiles. On the walls of the terrace, on a cornice, there is Thulth script written on an ultramarine background.

As well as cornices, walls, arches and sides of minarets are decorated with mosaic tiles bearing different artistic drawings, such as Arabesque.

Initially, this mosque was the tomb, built by "Amir Malek" Shah, ruler of Tous, in the reign of "Ologh Beig" between 1387-1379 Ad. He died in 1409 Ad, after being appointed to the governship of Kharazm, and his body transported to Meshed and buried in this tomb. In 1435 AD, in the era of "Abolghasem Babor", the tomb was completed and decorated.

With attention to contents of the articles, the specifics of the building and the graves founded underneath the dome, it could be accepted that the tomb has changed into a mosque later and have had its name from "Malek Shah".