St Paul’s Cathedral, further embellishing the inherently ‘London’ atmosphere of this most historic area. Trafalgar Square, the National Gallery is home to thousands of pieces covering everything from the 13th century to the modern age. Works by da Vinci, van Gogh, Monet, Turner and other greats await inside, making this one of the great art galleries in Europe. The audio guide is well worth shelling out a fiver for. admission is free with the exception of certain exhibitions.