This is an interesting seed where it states that art makes you smarter even if it is just going to a museum. Over the years as my sons were growing up, I used to take them to museums and historical events all of the time.
Philadelphia has a wealth of museums and historical events and one of the things I noticed was that my sons were always asking questions. Not just when they were very young, but all of the time. The type of questions they asked were questions to glean more knowledge.
I wonder if this was as a result of visiting all of those museums.