Casa da Música
Designed by Rem Koolhaas and OMA. Guided tour available in English from 1 June - 30 September at 10:00, 11:00, 16:00 and 17:00 for €10/person (free for children under 12) which take about 1 hour. The rest of the year the guided tour is at 11:00 and 16:00.