León is a wonderful city, combining stunning historical architecture with an irresistible energy. Its standout attraction is the cathedral, one of the most beautiful in all of Spain. By day you'll encounter a city with its roots firmly planted in the soil of northern Castile, with its grand monuments, loyal Catholic heritage and role as an important staging post along the Camino de Santiago. By night León is taken over by its large student population, who provide it with a deep-into-the-night soundtrack of revelry that floods the narrow streets and plazas of the picturesque old quarter, the Barrio Húmedo. It's a fabulous mix.