Ruhrtriennale, cultural festival This "International Festival of the Arts" from August 21 to September 21, 2025 is the most important arts festival in the Ruhr metropolis. Many large industrial monuments are then transformed into spectacular performance venues. At the center of the festival are the creations and productions that enter into dialogue with the characteristic performance locations. This year's program also includes musical theater and drama, dance and concert productions, symposia, exhibitions, films and there is a children's and youth program. Further information is available at www.ruhrtriennale.de.