Freilichtbühne Mülheim an der Ruhr

To make up for the loss of funds, Keßler arranged for the footpaths to be finished by city relief recipients, who received extra money each month in payment.

Later the same year, the project was taken over by the Reich Labour Service and the open-air theatre was added to the plans in the context of the Thingspiel movement.

[4] The enthusiasm for the production was strong, and the limit of 3,000 tickets necessitated a repeat performance, scheduled for the following night.

After the war, the theatre was eventually repaired and reopened on 30 June 1954 with a performance of Bizet's opera Carmen that drew 2,300 people: standing-room-only tickets were sold for 50 pfennings.

In 2006, events associated with the World Cup attracted a new audience, and since 2007 Regler have provided acoustic performances on summer Wednesday evenings under the title "Sunset Folks".