Some more random comments from our trip:
1. Stonehenge is really cool. You can't get right up to the rocks, and it was pretty crowded even on a cold February day, but it's still cool.
2. London sort of reminds me of New York, but cleaner and with politer people. You hardly every hear Londoners honk, and they will stop to let pedestrians cross the road. Within a block of the Earl's Court Tube station, which was near our hotel, I met a well-dressed middle-aged gentleman who offered to carry my suitcase up a flight of stairs, and then wished us a good trip; another well-dressed middle-aged man who saw us reading a menu in a restaurant window, and stopped to give us a bunch of (good!) tips on where to eat; and a sweet waitress at a Chinese restaurant who asked us all about California and gave us all sorts of suggestions on what to visit in London, which Tube stops to use, and where to avoid pickpockets.
3. It horrifies me that I could have legally driven a car in London. It would probably take me years of being a menace on the road to get used to driving on the left.
4. If a particular ritual was silly 500 years ago, it isn't any less silly now.
5. Despite the weather, February is the perfect time to visit London. We walked right into watch the Houses of Commons and Lords without queuing at all, and practically had the Tower of London to ourselves.