Theo Chocolates, Seattle
In this big brick building in Fremont, the Theo Chocolates tour shows the entire bean-to-bar process: From who picks the cacao and how cocoa farmers interact with the environment, straight through to the factory floor, where the beans become the chocolate we all love. Of course there's a selection of tastes. For younger kids, Theo's chocolate story time is a better alternative, exploring the same idea through a picture book. And (thankfully) there's still chocolate to taste.