Fort Monostor (Hungarian: Monostori Erőd) (also referred to as Fort Sandberg) is a fort is situated close to the city of Komárom, Hungary. It was built between 1850 and 1871.[1] After World War II the Soviets built the biggest ammunition storage in the Fortress of Monostor. Thousands of wagons of ammunition were forwarded from the strictly guarded objects.[2] One of a series of forts in the area, Monostor is open to the public as a museum.[3]