Old Royal Naval College London: what's on

Greenwich's grandest set piece, Wren again, built as a hospital for seamen and later the naval college, and now the centre of the Maritime Greenwich world heritage site. The Painted Hall is the reason to buy a ticket: nineteen years of Thornhill's ceiling, best seen lying on one of the mirrored trolleys they leave out for the purpose. The grounds are free and open late, which makes the river frontage between the two domes one of the better places in London to be at dusk. Eight minutes from London Bridge by train.