On Exhibit

Going up

Known for her lush celebrity portraits—Hillary Clinton in burgundy velvet on the cover of Vogue—Annie Leibovitz has traded gloss for hard hats and rebar. The photographer spent the past year shooting the construction of Renzo Piano's New York Times headquarters, which opens next spring. On view at the site itself, the 83 black-and-white pictures depict what most of us never see: nearly superhuman high-wire acts set against a gritty Midtown skyline—the sweat beneath the steel. At Eighth Ave. and W. 41st St.