Visit the New Tate (and go back to Hampstead and Hampstead Heath) <BR> <BR>.. and from what I learned here, another must, have tea at Brown's.

HAve recently returned from London and went to Somerset House (Aldwych) to see the Hermitage collection (Catherine the Great from St Petersburg) and the Gilbert Collection which is an amazing private collection donated to the people of UK consisting of the most incredible collection of micromosaics and snuff boxes. If you go give yourself plenty of time.