The summit of Montjuïc is an ideal enclave for the defense, since it has 360º of views on the territory. However, it was not until the War of the Reapers of the year 1640 that the city built a military compound in the place where there was a watchtower. This first fortress became real property in 1652, becoming soon one of the main protagonists of the War of Succession, between 1705 and 1714.

In the middle of the 18 century, the military engineer Juan Martin Cermeño will be in charge of the remodeling of the enclosure, badly damaged during the war. Its at this time when the castle will take on the look it still has today. The city of Barcelona has been bombed from the castle at various times in its history, which has also had prison functions. Until 1960 the castle is maintained as a military prison and thereafter it is ceded to the city under the management of the land army. Three years later Franco inaugurated a museum of arms there.

Currently, since 2007, the Castle of Montjuïc is owned by the Barcelona City Hall and, therefore, of all Barcelona residents.

During the summer open air movie nights are organized. You can't miss it!