A museum among museums

I took this photo in Zagreb, Croatia. There were a lot of must-sees in Zagreb and this direction board indicated 13 different places to see. There were many kinds of museums or galleries in Zagreb and 10 out of 13 places of this direction board had the same icon. I prefer to do more outdoorsy and basically I don't go into museums, but often go there to see massive architecture. The only museum I went inside in Zagreb was the Museum of Broken Relationships. I love to see something creative or something different from all the others. I thought the Museum of Broken Relationships might be more my thing and I was right.