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.

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.