RAF Museum: The Battle of Britain Hall is located at our Hendon site in North London:

A Messerschmitt BF109e in the Battle of Britain Hall at the Royal Air Force Museum London
The Museum is also hosting a Battle of Britain living history weekend 11-12 September 2010:
RAF: A number of Battle of Britain events are taking place to mark the 70th anniversary:
The Battle of Britain London Monument is located on London's Embankment. The bronze reliefs honour those who took part in the Battle. It forms an element of the Battle of Britain Heritage Walk in London.
The National Battle of Britain Memorial, an evocative sculpture of a pilot looking to the sky is located on the Kent coast at Capel le Ferne
The Kent Battle of Britain Museum is based at Hawkinge:
RAF Manston Spitfire and Hurricane Memorial Museum: