Vibrant, seaside Barcelona is the ultimate capital of culture and relaxation. Set between coastal mountains and the Mediterranean, it has world-class museums, bustling outdoor cafes, and an all-night party scene, as well as miles of beaches and hiking trails. Barcelona also has a laid-back attitude so seductive that, once you arrive, you won’t want to leave. Find out how to make the best of your time here with this ultimate guide of the city.