Lars Walker might prefer this one to the more fun, less accurate festival featured most recently. The Jorvik Festival is in York, England, which was named "Jorvik" by the Vikings. There's a long-standing archaeological dig there at the original city, run by the University of York. Back before 9/11, I had intended to go there and study in order to participate in the dig; the war changed my plans for what to do with my life, as is true for many others.
It looks like quite a bit of fun, actually, even though it's not "fun" oriented in the same way. I don't suppose any of us are near York to drop in, but if I'm wrong about that, be sure to get by.