You need to see the Imperial War Museum. I was absolutely knocked flat by it.
I loved it how incredibly thorough and detailed the exhibits were, and how they were refreshingly free of any sort of flag-waving. Everything was presented very objectively, and was supremely objective, IMO.
Tate Modern was also great.
As for London being terrible; I couldn't disagree more :lol:
I loved the place, since it reminded in some ways of a bigger version of my own home, Copenhagen. I don't like being out in nature/remote places all alone for holidays or daily life or... Well.. Anything.
I love the feeling of a busy metropolis that never sleeps, and in that department, London seems to deliver :)
Can't wait to go there during Easter!