[1] The Heidelberger Schlossfestspiele are the best-known and most-attended open-air theater plays in Northern Baden Region [de].
Every summer festival take place in the inner courtyard or in other areas of the Heidelberg Palace.
Guest performances were also integrated in the pre-war period, but today the festival management consciously relies on exclusively "in-house" productions.
[2] In the Corona summer of 2021, more than 20,000 visitors came to the Heidelberg Schlossfestspiele despite the reduced number of seats.
[4] This was made possible by the opening of a fourth venue in the gardens of Heidelberg Castle, the Sonnendeck on the Bäderterrasse.