Macro (Museo d’Arte Contemporanea Roma) was the first attempt in 1999 to assemble a permanent collection of contemporary art. The collection includes work of Italian artists from the 1960s onwards, including the Arte Povera group, the Scuola di Piazza del Popolo, who took inspiration from the American Pop Art movement, and the Nuova Scuola Romana group, who occupied the former pasta factory, Cerere, in San Lorenzo. The exhibition space is suitably industrial, with steel girders, iron gratings and a somewhat disconcerting glass floor. It was in fact an old brewery. Regular exhibitions of international and Italian artists including Tony Ousler and Marc Quinn draw in an interesting crowd of trendy, urban artophiles. Recently the museum has opened Macro al Mattatoio, another exhibition space in Testaccio in the old slaughterhouse off Piazza Orazio Giustiniani.