I've had a lot of projects and hobbies over the years, but my favorite nowadays is sandradodd.com/unschooling, and my favorite recent/new page is the history page. When I first made some "subject area" pages I avoided history because it's too big, and everything else led into history—English, art, music...
I like this one, though.
As with other pages, I don't mind if it leads people out of my site. Unschooling becomes bigger and more real each time someone jumps from one point to another (mentally or figuratively).
One cute thing there is a link to an English children's museum's page featuring little movies of some of their museum toys wound up or in motion by whatever means they operate. There's sound, too. Moving Toys