I recently travelled to northern Spain with G Adventures. We started in Barcelona, travelled north through the Pyrenees (including a half day hike on the Camino de Santiago) to Bilbao and San Sebastian, then to Logrono (famous for rioja wine and wonderful tapas bars) and ended in Madrid.

Barcelona was the highlight. There is so much to see and one could easily spend 3 or 4 days there. Gaudi's Sagrada Familia is a must see, but there are so many other things to experience, including a trip to La Boqueria Market followed by a cooking class, or a day trip to Montserrat. And you would not want to miss the tapas restaurants.

Barcelona has become very popular and therefore very crowded, but it is an exciting destination.