The arts come alive every spring in New York City—at museums, on stages, in gardens and, in one case, across a rooftop overlooking Central Park. That last one is the annual commission for the Met’s outdoor space, this year courtesy of Los Angeles artist Lauren Halsey; other highlights include a dance festival celebrating the African diaspora, an exhibition focused on paper as fashion material and an exploration of contemporary themes on the grounds of the New York Botanical Garden. Click through for details on these and more.