Innovative exhibitions of 20th-century and current art and design are shown in the Barbican Gallery and The Curve. Recent highlights have included the world-renowned photographer David La Chapelle, Grayson Perry's classical yet provocative vases, and architectural designs by Daniel Libeskind. COST: £5-£7. Mon.-Sat. 10-6, Wed. until 9 PM, Sun. noon-6. Tube: Barbican.