Barbara Gladstone’s hangar-like 24th St. exhibition space, designed by Selldorf Architects, has helped to make grand spectacles of films by Matthew Barney and Shirin Neshat; sculptures by Anish Kapoor, best known for his reflective Cloud Gate in Chicago; and arrestingly explicit cartoons of Carroll Dunham, among other works by contemporary artists across a range of media. The gallery now also has showrooms at 530 W. 21st St., on the Upper East Side (130 E. 64th St.) and in Brussels, Belgium.