This weekend event sprawls along two streets and is the best flea market in Paris—dealers swear by it. There’s little in terms of formal antiques and furniture. It’s better for old linens, vintage Hermès scarves, toys, ephemera, costume jewelry, perfume bottles, and bad art. Sadly, dealers tend to up the prices when they hear a foreign accent. Don’t be shy and haggle them down. Get there early—the best stuff goes fast. Open Saturday and Sunday, 7am to 2pm.