El Rastro is the main flea market Madrid and is as much a place to enjoy for its atmosphere and culinary offerings as it is for what you can buy there. By 11am on a Sunday, the sea of visitors swarms through the seemingly endless narrow lanes at El Rastro made by the rows of stalls, which sell everything from incense and t-shirts to army surplus and flamenco CDs. Be sure to stop by the endless cafés and bars that line the route to enjoy beers, tapas or even a plastic cup filled with olives.