By the end of my first European trip, and my mother will never let me live this down, I said, "Are we going to ever see anything other than churches and dead people?" Meaning, consistently touring old cathedrals, catacombs and crypts. Well mum, it's safe to say that I understand the desire to see all of the churches now.
London is known for having such an incredible food scene, and that recognition is incredibly well-deserved; what with the tiny, hole-in-the-wall pubs at every corner, little corner bistros and family-run favourites. Throw in a gin bar or two and you're well on your way.
A quick tourist note - if you want to dodge over-priced museum cafes, Caffè Tropea is incredibly close to the British Museum. It's a great spot to stop and recharge after a full day of sight-seeing.