Har! I have just had a slightly reduced version of that happen to me *grins*
I was offered a place at leeds University to read history....okay it's not a PhD but it's damn close
I have been wanting to do a degree for years and now am in position to do it....
So, in answer to the question; I would study History, with a particular focus on European Medieval
School of choice would probably be the school I walked away from when I was an arrrogant 18yr old (Christ Church College, Canterbury) or failing that Leeds Uni