Head to Portobello Road, world famous for its Saturday antiques market. Actually, the Portobello Market is three markets: antiques, "fruit and veg," and a flea market. The street begins at Notting Hill Gate, though the antiques stalls start a couple of blocks north, around Chepstow Villas. Lining the sloping street are also dozens of antiques shops and indoor markets, open most days -- in fact, serious collectors will want to do Portobello on a weekday, when they can explore the 90-some antiques and art stores in relative peace. Where the road levels off, around Elgin Crescent, youth culture and a vibrant neighborhood life kick in, with all manner of interesting small stores and restaurants interspersed with the fruit and vegetable market. This continues to the Westway overpass ("flyover" in British), where London's best flea market (high-class, vintage, antique, and secondhand clothing; jewelry; and junk) happens Friday and Saturday, then on up to Golborne Road. Tube: Notting Hill Gate or Ladbroke Grove.