Visiting London this summer

I am taking my wife and kids (14 and 9 in age) to London this summer, and am looking for some ideas to fill some days. We intend to explore the city to the fullest, and do not plan on traveling outside of London for the duration. We already have the following booked: Play at the Globe, Tour-London in a Day, Tour-Stonehedge & Bath, visiting Big Ben and St. James Park and London Eye, Babylon Park for an afternoon, and a fancy dinner at CORE by Clare Smyth for our 40th Anniversary.

I know there is just SO much to do in London but I could really use some help coming up with ideas to fill some of the other days. I've planned already 6 days and have 4 more to go. The days in question will be July 18th through the 21st. Does anyone have any ideas or recommendations on other places in London that we could explore for the day? Any activities, restaurants, or other events that are worth checking out?