Ready to pound the pavement and do some serious exploring during your trip to Barcelona? From Pedralbes Monastery to the Picasso Museum, Gaudi to the Grácia Festival, we've compiled a heavyweight list of the best sights, sounds, tastes, and day trips travelers to the second-largest city in Spain should have on their itinerary.
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It may not be as easy to do as it used to be, but it's definitely still possible to land a free airline upgrade.
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