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Theories about Stonehenge have historically tended to regard it as a stand-alone monument. But an increasingly well-supported view holds that Stonehenge was just part of a much larger ceremonial landscape, as this article in the March issue of Scientific American explains

Photograph by Kenji Toma Step away from the video game. While playing chess on an HD screen may be convenient, nothing beats the real thing -- especially when it comes to growing minds. "Kids are learning about their world, and if they only learn through the limitations of a computer, they won't learn about themselves," says Jeffrey Ryan, designer for Naef U.S.A