Ever wonder what the Vikings did for fun when they weren't out raping and pillaging? The answer: kubb. Occasionally called "Viking chess," this Swedish lawn game is a bocce-Jenga hybrid in which teams try to knock down opponents' wooden blocks and shelter their own from attack. Fashion your own kubb set out of spare lumber and play on sand, snow, or grass. Great for kids, and even better for adults who like to keep a hand free to hold a beer.