I'm a bit of a history nerd and for my upcoming London trip I'm especially interested in the period from WWI to the end of WWII. I've got five full days in London one of which is for a day trip to Bath.
I'm planning on visiting Churchill Museum and Cabinet War Rooms, the Imperial War Museum along with a London Walking tour on the Blitz that starts at the St. Paul tube station. I thought about a day trip to Dover, but I only want to spend one day outside of London and I really want to see Bath.
Are there any other sites in London -- maybe off the beaten path that my inner history nerd can't miss?