Palau de la Musica Catalana is a concert place and one of the most compelling places in the city. It was built between 1905 and 1908 by the famous architect Lluis Domènech i Montaner and declared a World Heritage Site by UNESCO in 1997. Palau de la Musica Catalana is a real treasure with its magical architectural world full of little details and references to the characteristic nature of modernist architecture.