The Masoudieh Mansion is a historical mansion in Tehran, Iran. It was built as a residence for the Qajar prince Mass'oud Mirza Zell-e Soltan in 1878, hence the name Masoudieh.
Wikipedia https://en.wikipedia.org/wiki/Masoudieh_Mansion
Coordinates 35°41'21.645" N 51°25'41.499" E