One of the Dutch heritage, this fort was built in 1745 on the orders of Governor-General Baron Van Imhoff. As part of the Dutch supervision of the Surakarta ruler, especially against the Surakarta Palace, this six-meter-high fortress was also used as a garrison center. The opposite is the residence of the Dutch governor (now the office of the City Hall of Surakarta).
Formerly neglected because the land has been owned by the private, Vastenburg Castle beautified after it was assigned as a cultural heritage site in 2010. A number of renovations have been done in front of the facade, so the gloomy impression is gone. The face of Vastenburg Castle reigned. The letterboard Solo City that built in one of the corners is enough to attract the attention of visitors.
After the independence day of Indonesia, the fort was used as a TNI base to defend independence. In the 1970s-1980s this building was used as a soldier training center and the 6th Infantry Brigade 6 / Trisakti Baladaya Kostrad for Surakarta and Surakarta Residency.
Government and private also often held various events in the fort, both on the inside and on its face. From music events, festivals, to ceremonies.