For drop-dead operatic dazzle on the colossal scale, not even Verona’s fabled arena tops the Bregenz Festival’s floating stage at the Austrian end of Lake Constance. Conventional scenic design is useless here. The action is far away. Nuance is a lost cause. What’s needed is an extravagant visual metaphor that distills the essence of the classic at hand. Each show is engineered like a space ship and runs for two seasons, rain or shine, selling out months in advance. Courtesy of Carnegie Hall+, Philipp Stölzl’s Pennywise Rigoletto—the Bregenz sensation of 2019—lights up the outdoor screen at Hudson Yards on August 20. Showtime is five P.M. No charge, and no umbrellas. —Matthew Gurewitsch