Seattle being the great big city that it is, is of course going to be more diverse than most small towns. But still a great amount of events happening here from February till next November!
Easy access page here, http://www.seattlecenter.com/festal/, of events at the Seattle Center in the heart of the city. Always a great place to take kids with performances happening right in the middle of the food court, and a giant Hands On Children’s Museum below. My dance group has performed here for the Indigenous Culture Day last year (which they are having this festival again in August this year) and it was a great experience and gives groups a lot of exposure. Check this link out and pick a culture to learn about!