Valencia's Ciutat de les Arts i les Ciències (City of Arts and Sciences) at night. The building to the left is the city's opera house and cultural centre, the Palau de les Arts Reina Sofía. Designed by Santiago Calatrava, the Palau de les Arts was officially opened in October 2005 and staged its first opera, Beethoven's Fidelio, in October 2006. The opera house suffered a setback in December of that year when the main stage platform collapsed with the complete set of Jonathan Miller's production of Don Giovanni.