Robat Sharaf, or Sharaf Caravanserai, is an important historical place that dates back to the late Seljuk era. It is located in the eastern part of the Red Road in Khorasan Razavi province.
The initial building of this mosque was constructed during Seljuq Empire which is a production of the Iranian architecture for 15 centuries
Iranian architecture can be studied in two eras, pre-Islamic era (divided into two styles of Parsian and Parthian) and post-Islamic era