A: I'm looking for old music boxes, but I can't find any. B: If you go to a flea market, you can find all kinds of things. A: I don't want a music box that's full of fleas! B: Ha! A flea market is a popular outdoor place for selling used things. There are no fleas. A: That sounds like a good idea. Where is the nearest one? B: Actually, there's a huge flea market at the stadium on the second Sunday of each month.