Quiet places to visit in London?
i'm visiting London in a week and i'm very excited! But i tend to get a bit overwhelmed in very busy, crowded places. I'd like to spend most of my trip having leisurely walks, trying good teashops or coffee places, and reading. Does anybody have recommendations for places i could visit?
EDIT: thank you lovely people for your suggestions! I'll have a good time looking into all of them in the airport!!