Mohammad Abad stone caravanserai
The Mohammad Abad stone caravanserai is located along the extended caravan route of Khorāsān, north-east of Qom, near the village Mohammad Ābād (region Qom). It dates back to the Seljuk era, to the fifth and sixth centuries of the lunar Hegira and in the qajara era it was gradually abandoned.
It has undergone numerous repairs over the centuries. With an area of over 12610 square meters, in the 4 type Iwan, was built with imposing walls and eight solid surveillance towers using the stones of the mountain.
This building had separate parts, some intended for shelter for livestock and others for the rest of caravaners. It has two courtyards: the first has no rooms and secondary services which most probably was used for livestock and quadrupeds and the entrance to the second which is the main part of the caravanserai, with a high portal and two floors with blind decorated arcades in brick on both sides.
The upper floor of the portal was probably where the head of the caravanserai resided. The rectangular vestibule is the corridor that connects the two courtyards. This caravanserai, like most of those in the Seljuk era, has no stables behind the rooms and there is a courtyard around it.
It is mentioned in historical texts as caravanserai Deyr Kāh and the remains of the mud fortress of Mohammad Ābād dating from the Parthian period are visible on a hill next to this complex.