I'm planning to be in Cambridge and King's Lynn on 12/24 and 12/25 respectively, then in/near Leicester at a church retreat for a few days in early January. For the dates in between (i.e., the last week of December through New Year's), I'm thinking maybe I should go to London as so many interesting places in the smaller towns/cities are closed at that time of year.
I love visiting museums and libraries, churches and cathedrals, stately homes and castles. I am not very athletic and don't particularly enjoy the great outdoors in freezing or rainy weather, but I'm able bodied. Any advice will be welcome.