The Ghasre Bahram Caravanserai is a Safavid dynasty caravanserai located 154 km south of Tehran , in the stone old route of Isfahan–Kashan-Garmsar , Semnan province , Iran .
It looks like a city caravanserai , The exterior of caravanserai is square shaped and its facade is large regular lime and white stones. The caravanserai has four tall semicircle towers and two northern-southern gates.
The caravanserai is a four iwans (porches) building and it’s rooms are surrounding a central courtyard. The central courtyard is a large octagonal area with 24 rooms around it. There is a square shaped pond in the middle of central courtyard. A large simple yard with a high arch is on eastern side of the caravanserai. There is a broad forum on the western side of the central courtyard where has a alcove.