A huge white cloud sucks up a dancer, hands reach out of a wall and bodies float in space. The large-scale exhibition "Sasha Waltz: Installations Objects Performances," which opens Sept. 28 at the Center for Art and Media Technology (ZKM) in Karlsruhe in southwestern Germany, combines modern dance and installation art. The show also marks the 20th anniversary of Sasha Waltz & Guests, the prolific Berlin-based company of the influential Karlsruhe-born dancer.