Fire Temple "Ateshgah"

The Ateshgah of Baku, Azerbaijani: Atəşgah), often called the "Fire Temple of Baku", is a castle-like religious temple in Surakhany town, a suburb in Baku, Azerbaijan.

Based on Iranian and Indian inscriptions, the temple was used as a Hindu, Sikh, and Zoroastrian place of worship. "Ātash" is the Persian word for fire. The pentagonal complex, which has a courtyard surrounded by cells for monks and a tetrapillar-altar in the middle, was built during the 17th and 18th centuries. It was abandoned in the late 19th century, probably due to the dwindling of the Indian population in the area.

Source: Wikipedia