The Križanke open air theatre is considered one of the most beautiful and acoustically perfect semi open-air venues in Slovenia. The big stage with an orchestra pit is suitable for various theatrical and musical staging (operas, operettas, ballet and concerts), for symphonic, pop and jazz concerts, as well as theatre productions. The theatre is outfitted with a large sliding roof, making performances possible during bad weather.

The architectural complex of Križanke is a popular open-air venue for performing arts in Ljubljana. It was created by Jože Plečnik in the 1950s especially for the Ljubljana Festival within an abandoned former monastery. The maximum capacity is between 3000-3500 standing or 1500 seating in various configurations.