I think dolls are quite possibly one of the creepiest things in existence. I don't know why or when I developed a feeling of unease toward them, but they just really weird me out. I think a doll museum would be a living nightmare for me.
Well you are not the only one, if the sheer amount of creepy dolls in media is any indication. Just think of the dolls that appear in horror movies like "The Conjuring". Heck even in Yu Gi Oh there is an archetype specifically designed around the fear of dolls...