Sultan's Armed Forces Museum
The Sultan's Armed Forces Museum is a military history museum, located in the 150-year-old Bait Al Falaj Fort, once the headquarters for Sultan Said bin Sultan's Armed Forces, located on Al Mujamma Street, in the Ruwi area near Muscat, Oman. It was inaugurated in 1988 by Sultan Qaboos bin Said, the supreme commander of the Armed Forces.
Source: Wikipedia — Sultan's Armed Forces Museum (CC BY-SA 4.0)