Bahram Fire Temple of Rey

The Bahram Fire Temple, also known as Tappeh Mil (Mil Hill), is one of the outstanding monuments of the Sasanian era in Iran. It stands on top of a high hill in the village of Qaleh-No, about 12 kilometres southeast of the city of Rey. The Bahram Fire Temple was inscribed on Iran's National Heritage list in 1334 (Solar Hijri) and is regarded as one of Tehran's most important historical attractions.

This fire temple was most likely the place where the sacred fire was kept during the Sasanian period. The surviving remains show that the structure was built of stone, sarooj (a traditional waterproof mortar), mud brick and clay. During Alexander's invasion of Iran, parts of the fire temple were destroyed, and only a section of its chahartaq (four-arched) structure remains. The building rests on two large piers that look like a mil (pillar) from a distance, which is why it became known as Tappeh Mil.

Its location near Cheshmeh Ali and the Rashkan Fortress gives it particular significance and makes it valuable both religiously and strategically. To reach the Bahram Fire Temple, you can travel from the city of Rey toward the village of Qaleh-No. A dirt track continues toward Tappeh Mil, about 5 to 7 kilometres long and suitable for walking. The route generally has a gentle gradient, and along the way you can see mountain scenery and a variety of vegetation.