The history of Karaj dates back many centuries. The stone built
Zoroastrian fire temple of Takht-e-Rostam from the Parthian era is a
testament to this.
The Soleimanieh palace (currently housing a college of Agriculture),
the mausoleum of Shahzadeh Soleiman, Imamzadeh Rahman and Zeid
Palang Abad-e-Eshtehard are other historical relics of the Karaj
During the Pahlavi dynasty era, the Morvarid Palace was constructed
in nearby Mehrshahr district, designed by the Frank Lloyd Wright