Wikipedia
Berwaldhallen
Berwaldhallen (Berwald Hall) is a concert hall situated in a park landscape at Dag Hammarskjöldsväg 3 in the Östermalm district of Stockholm, Sweden. Construction on the building began in 1976 based on a design by architects Erik Ahnborg and Sune Lindström. The hall is shaped as a hexagon.
The seating is 1,302 places, of which 482 are in the stalls. The hall won a Europa Nostra architecture award as an "admirably sensitive designed concert hall".