How about a cultural festival? Most city governments will run or finance festivals at historic sites.
Yesterday I went to the Richmond Maritime Festival in Richmond, BC. The site is a piece of history. It is on the site of a 1930's cannery and fishing village. Small homes and warehouses have been restored and filled with information and relics if this key piece of BC history. The festival brought in a wealth of knowledge about the era. They
sitting frozen as statues until you ring a bell, at which point they come to life and share a fact about life in the early 20th century. The festival organizers planned something for everyone. There were stilt walking mermaids, fish, fisherman and more. There were more crafts than I can remember. A variety of music performers from stage acts to an accordionist in a tree.
It shouldn't come as a surprise that I was drawn by the juggler and his pile of circus equipment people could use. I finally got the hang of the diabolo, and taught a very excited kid to yoyo.
All in all this was the best festival of it's sort I've been to and I'm looking forward to next year.