One of the most popular museum in Tehran is Golestan Palace:
The lavish Golestan Palace is a masterpiece of the Qajar era, embodying the successful integration of the earlier Persian crafts and architecture with Western influences.
Arg was built during the reign of Tahmasb I (r. 1524-1576) of the Safaviddynasty (1502-1736), and was later renovated by Karim Khan Zand (r. 1750-1779). Agha Mohamd Khan Qajar (1742-1797) chose Tehran as his capital. The Arg became the site of the Qajar (1794-1925).Court and Golestan Palace became the official residence of the royal family.During the Pahlavi era (1925-1979) Golestan Palace was used for formal royal receptions. The most important ceremonies to be held in the Palace during the Pahlavi era were the coronation of Reza Khan (r. 1925-1941) in Takht-e Marmar and the coronation of Mohammad Reza Pahlavi (r. 1941-deposed 1979) in the Museum Hall.In its present state, Golestan Palace is the result of roughly 400 years construction and renovations. The buildings at the contemporary location each have a unique history.
There is a Main Halls, which includes the spectacular Mirror Hall, and the Negar Khaneh (Iranian Painting Gallery), and some more sections as followed:
Takhte Marmar( Marble bed)
Talar Aineh (Mirror Hall)
Howze Khane(Basin Hall)