For all lovers of art and music, and fans of opera in particular, a visit to the Gran Teatre del Liceo opera house is a must while you are in Barcelona. It is one of the most famous opera houses in Europe and one of the most beautiful tourist attractions in Barcelona in general. Where the most important works of classical music were performed there by the greatest singers of the past two decades, Domingo, Pavarotti, Caballe, Callas, Tibaldi and who will always have a special place in the heart of the audience. The venue also regularly hosts the largest Wagner Festival after the Bayreuth Festival .