Varamin's Jâme'h mosque is located in the city of the same name (Tehran region) and its construction dates back to the Ilkhanid period. The ancient building of the Jām'eh or Jom'e mosque has a rectangular shape and is made of brick and wood. His plant is four iwān and has one Shabestan (colonnaded prayer hall) and a high brick dome with double covering.
Also the courtyard of the mosque is rectangular and in the middle of it there is a pool of water. This building has many decorations, inlaid majolica, plaster work (among the most beautiful examples of this art in Iran), historical inscriptions and various types of calligraphies counted among the important artistic works of Iran so much to be considered a real Islamic architecture collection.