The midnight hour

This is your last chance to catch Caravaggio: The Final Years exhibition. It's open until 9pm with live music and a bar - and on the final evening (Sat 21 May) you can view until midnight.

National Gallery, Trafalgar Square, WC2 (020-7747 2885). Fri 20 May, 10am-9pm, Sat 21 May 10am-midnight, £7.50, concs £3-£6.50, under-12s free.