Kashan had one of the first civilized cities (Sialk) in the whole history of human beings. It was always loved by traders, as Kashan was a part of the Silk Way and in between the two important capital cities of Tehran and Esfahan. Kashan has lots of historical houses with unbelievably considerate, masterful architecture and techniques. my favorite historical places in Kashan are Tabatbaie house and Soltan Amir Ahmad bathhouse. Kashan is the city of carpet, roses, history, and even the mysteries of Sialk.