Apollo. Preview and subscribe here. Once upon a time, you could stand on the roof of 548 West 22nd Street, up among the water towers of Manhattan, with views out over the Hudson to New Jersey, and watch the city shimmer and reflect on the surfaces of one of Dan Graham’s glass pavilions. It was a New York moment. You could go downstairs, following the blue and green glow of a Dan Flavin light sculpture lining the stairwell, and see shows by leaders in contemporary European and American art reaching back to the 1960s. The galleries here, at Dia Center for the Arts, were some of the first to display Richard Serra’s