This building which is called four-arches or Kheir Abad temple has a square shaped style with edges of 11 m. This ancient building has four arches on four main sides, also these arches are built on four columns with almost 9 m volume which have been used as a guidance or hearth, exactly like other buildings in that era.
Its main stuffs are stone and chalk which preserved the big and massive dome of this building for hundred years. The outside edges of this four-arch are 07/11 m in width, inner dimensions under dome are 26/6 m and the height of arches till under the arc is 5/4.
