It is a mansion with a garden that the artist Ivan Mestrovic bought with his brother in order to modify it and turn it into an art gallery and a museum at the same time. The exhibition, held in three locations (Museum Square in the Hall of the Sacred Heart, the Temple of Augustus and the Amphitheater Gallery), exhibits sculptures in wood, bronze, marble, and plaster, paintings, drawings and lithographs such as Mestrove's masterpieces from the period 1913-195, and the gallery is enriched with art collections from other museum institutions and churches. , as well as those owned by Ivan Mestrovic.