Another one of Zagreb's quirky museums, the Croatian Museum of Naïve Art (Hrvatski Muzej Naivne Umjetnosti) is also very popular. 

It features many displays of works by such well-known "naïve" artists as Ivan Generalic, Mraz, Mirko Virius, and Smaljic. 

Also on display are similar style works — sometimes referred to as "primitive" art — by international artists. Despite the name, naive art was actually a style that was popular in what is now Croatia, as well as the world, in the 1960s and 1970s.