It’s only fitting that the quintessential Manhattan museum, the Whitney, should reopen with an exhibition celebrating the quintessential Manhattan hot spot for art—the blocks below 14th Street, known as “downtown.” Ahead of the completion of David Hammons’s Day’s End, a large-scale sculpture the artist is building in Hudson River Park, this exhibition celebrates downtown Manhattan’s rich history, with works from David Wojnarowicz, Alvin Baltrop, Jimmy Wright, Martin Wong, and Gordon Matta-Clark, whose 1975 public-art project Day’s End inspired Hammons’s own. —J.V.