Vienna State Opera
The opera house was the first major building on the Vienna Ringstrasse commissioned by the Viennese "city expansion fund". Work commenced on the house in 1861 and was completed in 1869, following plans drawn up by architects August Sicard von Sicardsburg and Eduard van der Nüll. It was built in the Neo-Renaissance style by the renowned Czech architect and contractor Josef Hlávka.
Konzerthaus, Vienna
The building is about 70×40 meters and had originally three halls, in which there can be simultaneous concerts, since they are sound-proofed. The original Art Nouveau building was partly destroyed during renovations and adaptions, but the building was reconstructed from original sketches in the 1970s. A historic organ was installed in the Konzerthaus by the Austrian firm Rieger in 1913. Between 1997 and 2000 the house was completely renovated.The Konzerthaus has the Vienna Symphony, the Vienna Chamber Orchestra, the Wiener Singakademie and the Klangforum Wien in residence. Several subscriptions also include concerts by the Vienna Philharmonic and other organizations.