The National Museum of Montenegro is actually a cluster of museums on a combined ticket, spread across several buildings in Cetinje's town centre. The main institutions are: the King Nikola Palace (the former royal residence, now a history and decorative arts museum), the History Museum, the Art Museum, and the Ethnographic Museum. A full visit to all four takes most of a day.
The King Nikola Palace is the most accessible for visitors without specialist knowledge — it is essentially a guided tour of how a small European monarchy lived and functioned at the turn of the 20th century. The Art Museum holds the most important collection of Montenegrin and Yugoslav art outside Podgorica, with particular strengths in 20th-century painting. The Ethnographic Museum documents rural Montenegrin life with costumes, tools, and domestic objects. Combined tickets are available at any of the participating museums.