Gladstone Gallery in New York is presenting waterfall, a solo exhibition by Ugo Rondinone, from 17 September to 31 October 2026. The show centres on twelve vertical sculptures in transparent resin, each between 3.5 and 6 metres tall, tinted with crushed gemstone pigments and the artist's own hair and fingernail ash. The works continue Rondinone's long-running interest in natural phenomena rendered as meditative, monumental form.