Hidden away in a small antiques district, not far from the Opéra Garnier, is Paris's central auction house. With everything from old clothes to haute-couture gowns and from tchotchkes to ornate Chinese lacquered boxes, rare books, and wine, Drouot sells it all. Anyone can attend the sales and viewings, which draw a mix of art dealers, ladies who lunch, and art amateurs hoping to discover an unknown masterpiece. Check the website to see what's on the block. Don't miss the small galleries and antiques dealers in the Quartier Drouot, a warren of small streets around the auction house, notably on Rues Rossini and de la Grange-Batelière.