I am going on holiday tomorrow to London (for the umpteenth time). Can anyone give me suggestions for sightseeing that may never have crossed my mind? I have done madame tussaud's (at least five times), London aquarium, Greenwich, Kew Gardens, Tower of London, St Paul's... The usual National Gallery, National Portrait Gallery, Tate Modern, Tate Britain (I have a sister in Art History...)Every year I see the same things. It's getting boring. Any suggestions?