A superb collection of British art and a hefty number of European masters are the highlights at the city's top art gallery. It's home to the best assemblage of Pre-Raphaelite art as well as a permanent collection of pre-17th-century art, mostly by Dutch and early Renaissance masters. It also hosts exciting exhibitions of modern and contemporary art. The gallery runs a free hour-long highlights tour from 2pm to 3pm Thursday to Sunday.