The Museum of the Qasr Prison is a historical complex in Tehran, Iran.
Formerly referred to as the Qasr Prison, it was one of the oldest political prisons in Iran, which is now a museum complex surrounded by a public park.
Wikipedia https://en.wikipedia.org/wiki/Museum_of_the_Qasr_Prison
Address Tehran, Iran
Coordinates 35°43'26.103" N 51°26'57.059" E