A Work Titled ‘Nude, With Free Admission’

Naked or scantily clad people wandered among the marble nudes at Vienna’s prestigious Leopold Museum, lured by an offer of free entry to “The Naked Truth,� an exhibition of early-1900s erotic art, if they showed up in a swimsuit or nothing.

Peter Weinhaeupl, the commercial director of the Leopold, said the goal was twofold: to help people cope with a heat wave in the city and to create a mini-scandal reminiscent of the way the artworks of Gustav Klimt, Egon Schiele, Oskar Kokoschka and others shocked the public when they were unveiled a century ago.

Most customers opted for swimsuits, but a few dared to bare more.