Under Philippe de Montebello's directorship the Metropolitan Museum has nearly doubled in size to two million square feet. Notable changes have included the opening of the Carroll and Milton Petrie European Sculpture Court in 1990, new galleries for Greek & Roman art, the recently opened Ruth and Harold D. Uris Center for Education, the remodeled and reinstalled galleries for Oceanic and Native North American art, and expanded galleries for Chinese, Cypriot, Ancient Near Eastern, and Korean art. In 2007, the Metropolitan reopened its expanded galleries for 19th- and early 20th-century European paintings and decorative arts, formerly Modernist, in a historicizing Beaux-Arts style, and a new high-ceilinged gallery to show off Giovanni Battista Tiepolo's monumental paintings to their best advantage. Criticism of de Montebello has focused on his alleged conservatism regarding modern and contemporary art: in a 1999 op-ed piece in the "New York Times" he lauded the city's mayor Rudy Giuliani for rubbishing Chris Ofili's infamous painting "The Holy Virgin Mary", which used elephant dung as one of its materials. In the early years of his tenure, the Department of Modern Art was said to lag behind the museum's other departments in its spending power. But in recent years, the Museum has purchased iconic works by Jasper Johns, Damien Hirst, and Robert Rauschenberg, and mounted exhibitions by contemporary artists like Johns, Rauschenberg, Tara Donovan, Sean Scully, and Kara Walker.