Hendon RAF Museum
Imperial War Museum London
HMS Belfast...sorry seems HMS Belfast is currently closed and will not be reopening until after Easter 2012. But u can take nice pictures cause it is anchored near London Tower Bridge
Churchill War Room
if u have enough time to go near Cambridge u can visit IWM Duxford and the Shuttleworth Collection at the Old Warden airfield (WWI)
This is my favorite tour in England
