Dan Lewis runs the popular daily newsletter Now I Know ("Learn Something New Every Day, By Email"). We've invited him to share some of his stories on mental_floss this week. To subscribe to his daily email, click... READ ON

It’s a little more involved than those bootleg igloos you constructed as a kid!... READ ON

Head shrinking is rumored to have occurred all over the world, but documented only among a few indigenous South American tribes living in Peru and Ecuador. How do you take a flesh-and-bone head and shrink it?... READ ON

It's that time of year -- strings of tiny lights are everywhere, and families are wandering around, checking out those lights. If you're like me, you bring your camera along on these light-viewing jaunts. And if you're like me, you use your camera to take boring old pictures of boring old lights. But if you have a decent digital SLR camera (or have a camera phone and are willing to make some compromises on which techniques you use; see below), you can do some nutty stuff -- and it's not hard at all.... READ ON