Since 1968, located at the Bratislava Castle, where the exposure and exhibit space, depositories, and restoration of professional offices. The fund takes care of its nearly 250,000 collection items in the national history, art and culture, and traditional handicrafts, numismatics, ethnography, military, economy, history of Slovaks living abroad, Croatian Culture in Slovakia and non-European cultures. Several collections of the museum is the largest in Slovakia (numismatics, historical and folk textiles, glass and ceramics, militaria, crafts, historical print, religious art and folk art). Collectors' pieces were placed in recent years by specialized depositories by type of material.
The museum is currently closed for renovation.