The V&A covers 12.5 acres (51,000 m2) and 145 galleries. Its collection spans 5,000 years of art, from ancient times to the present day, from the cultures of Europe, North America, Asia and North Africa. The holdings of ceramics, glass, textiles, costumes, silver, ironwork, jewellery, furniture, medieval objects, sculpture, prints and printmaking, drawings and photographs are among the largest and most comprehensive in the world. The museum owns the world's largest collection of post-classical sculpture, with the holdings of Italian Renaissance items being the largest outside Italy. The departments of Asia include art from South Asia, China, Japan, Korea and the Islamic world. The East Asian collections are among the best in Europe, with particular strengths in ceramics and metalwork, while the Islamic collection is amongst the largest in the Western world. Overall, it is one of the largest museums in the world.