Yard sales are popular in Pasadena. At a good one you'll find all kinds of deals: furniture, clothing, dishes, books. You name it, people sell it. At a bad one you'll find mostly junk, or the prices are too high and the seller's not willing to bargain.
Weekends around here it seems there's a yard sale on every block. This kind of selling is typically American, and I imagine it goes on around the world as well. In the Midwest we used to have garage sales in summertime. In England I believe they're called "boot sales." We have good weather, so we get to pawn off our junk on each other year 'round.
After I took this photo I met the man in the picture. He said he thought yard sales might have originated in southern California. Maybe so. If not, I'd be willing to bet we're at least the capital.