"El Rastro, one of Europe's most famous flea markets, is an indie shopper's dream. Open each Saturday and on public holidays, Plaza de Cascorro comes alive with hundreds of stalls where you can peruse souvenirs, antiques, and clothes. Come early to snatch up the best deals, and don't be afraid to bargain. You can cover a lot of ground if you arrive at 9 a.m. right when it opens—you'll beat the crowds." - Ramsey Qubein