Delicately curved and almost futuristic in appearance, the multi-purpose hall in Mannheim's Herzogenriedpark is the world's largest self-supporting wooden lattice-shell construction. It was designed in 1975 by the architect of the Munich Olympic Park, Frei Otto, and Carlfried Mutschler. At that time, the hall boasted the largest cantilevered dome in the world and quickly earned the nickname "Wonder of Mannheim". With its organic structure and material-minimised construction, it is famous in architectural circles way beyond German borders. Even for non-architects, the impressive hall is well worth a visit. The "Multihalle" also offers a diverse programme featuring movie screenings, workshops, dance peformances and more.