If you had a relatively short time to live in London, what would you see? What would you do?

Perhaps one of my favorite Downton Abbey moments is when the privileged dowager Duchess of Grantham asks, "What is a weekEND?" Unfortunately, as modern commoners, we know all too well what a weekEND is: a time to treasure being together as a family, a time to recharge and regroup from the working week . . . and, when you live in a city where you are half-resident/half-tourist, a time to check things off the neverending must-see and must-do list.