Established in 1974 in order to upgrade regular cultural activities taking place in Kostanjevica na Krki, most especially in the field of visual art. The Museum is the legal successor of Dolenjska Cultural Festival, as is its activities and property (art collections). It covers the visual art of a wide area which is composed of Bela Krajina, Dolenjska and Posavje. As such, it is recorded in Museum and Gallery register of the Ministry of Culture RS.
Božidar Jakac Art Museum is one of the largest in Slovenia due to the size of its exhibiting area, presented material and fine art collection. Its permanent exhibitions present works of Slovene Expressionist painters, while temporary exhibitions cover the work of the most important contemporary artists from Slovenia and abroad. Annual programmes of Božidar Jakac Art Museum are determined in cooperation with other Visual Art Institutions who work on national as well as international level.  An important segment of the Museum’s activities is its successful collaboration with neighbouring Croatia. Božidar Jakac Art Museum is an indispensable agent in the development of Kostanjevica na Krki Municipality.