The Croatian Museum of Naïve Art

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.