I read here that Abyaneh is called an entrance to the Iranian history but I think it is better to call this village an entrance to the Parthian history beucase everthing (architectural style, costume, language, ...) is Parthian.
http://www.iccim.org/english/Magazine/iran_commerce/no23_200 0/21.htm
In order to reach the ancient village, one should take a small route off the kilometer 54 of the Kashan-Natanz road. Arriving at the village, one will wonder as to how such an ancient place has remained so incredibly intact ever since the Sassanid era, while the rest of the country has constantly been under one kind of uprising or another.
The houses of Abyaneh bear an ancient architectural style, featured by the use of clay as the construction material and latticed windows and wooden doors.
Walking through the streets of Abyaneh, one can see men and women, young and old, in traditional costumes. It seems modern life has created no changes in their clothes and they still prefer their traditional garments.
http://www.irantour.org/Iran/city/ABYANEH.html
The village is compact, with narrow and sloped lanes, and houses located on the slope as if placed on a stairway. Here, the roofs of some houses are used to serve as the courtyard for other houses higher up on the slope. The language spoken by the literate people of Abyaneh is Parthian Pahlavi. They are deeply committed to honoring their traditions.