CBS News: America's crazy about pizza. On any given day, about one in eight Americans will be eating a delectable slice, or two, or three.

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But once the pizza has been eaten, do you ever pay attention to the box? Most people toss away their pizza boxes, but Scott Wiener isn't most people. He is a pizza aficionado who gives tours of notable New York City pizzerias. While Wiener always craves a good pizza, he's fanatical about the boxes.

Wiener collects pizza boxes. He says right now, he has around 750, maybe a few more of these boxes. And it's a serious collection.