The Aalto Theatre is Essen's main opera house and one of the most admired buildings in the Ruhr — a curved, organically shaped structure designed by the Finnish architect Alvar Aalto in the 1950s but not completed until 1988. It is home to the Aalto-Musiktheater opera company and the Aalto Ballett, and hosts an active programme of opera, ballet, and orchestral concerts.
The building's exterior is characteristically Aalto: gentle curves, natural materials, a sense of something grown rather than constructed. The interior is more intimate than many opera houses of comparable status — sight lines from all positions are good and the acoustics are excellent. The theatre sits between the city centre and the Museum Folkwang, making a combined cultural afternoon straightforward.