Puente Viejo o de la Muza Monument · Balmaseda, Enkartazioak / Encartaciones, Bizkaia Image of Balmaseda, not of the place itself. Romanesque-Gothic bridge built between the 12th and 15th centuries over the Cadagua river, with a central defensive tower where a toll used to be collected. It was declared Monumento Histórico-Artístico (Spain's heritage designation in force between 1931 and 1985) in 1984 (a designation now folded into the Bien de Interés Cultural (Spain's highest level of heritage protection) regime). siglos XII-XV (construcción); 1984 (declaración de monumento histórico-artístico) Photo: Phil Richards from London, UK (CC BY-SA 2.0) What to see and do in Balmaseda