Santiago de Compostela

Santiago de Compostela can be seen in 2 days: the Cathedral and its Pórtico da Gloria on one, and the rest of the UNESCO-listed old town on the other. May-September lowers the chance of rain, though Galicia never fully rules it out. Prices are reasonable, lower than Spain's major capitals. It's the final destination of the Camino de Santiago, a centuries-old pilgrimage route that brings over 400,000 walkers from around the world to its Cathedral every year.