UNESCO declared Maritime Greenwich a World heritage site in 1997. Spend a day soaking up the romantic baroque architecture and rolling parks. The Old Royal Naval College contains the Painted Hall – perhaps the finest baroque dining hall in the country – designed by Christopher Wren and painted by James Thornhill. The National Maritime Museum holds the largest collection of marine art in the world and the classical Queen's House has a superb collection of fine art. Stroll up the hill to the Royal Observatory for views across the river to London's busy financial district and beyond.