My uncle runs study abroad for SUU and planned the whole trip for my family.

Here's our itinerary
Monday: arrive in AM, dropped stuff off and went to see Buckingham Palace, Parliament Square, Trafalgar Square

Tuesday: Hyde Park, Albert and Victoria Museum (LDS chapel and visitor's center nearby), National Gallery, Covent Gardens, St Martin in the Fields church (has a fun little cafeteria for lunch in the basement accessible to the side), St Paul's Cathedral has an evensong service in the evening that's free to attend but you can't do any sightseeing inside unless you go earlier in the day

Wednesday: Westminster Abbey (must see), Tower of London (cool to see, but it ends up being a bunch of boring stone rooms. England could do a lot to liven up these tourist sites), walked across the Tower Bridge to Borough Market and found some wonderful pastries and other food (highly recommend but closes at 5), went to a play at night (we saw the play where everything goes wrong, I was ready to fall asleep but it was so funny it kept me entertained entire time)

Thursday: British museum (must see — Rosetta stone, mummies, could literally spend an entire day here), British library (magna carta), went to Greenwich to see the prime meridian (best views of London), saw the Queen's House that inspired the White House (kinda boring), didn't have time but wish we could have seen the National Maritime museum (has the clothes Horatio Nelson died in among others), took the Thames Clipper back to downtown London (highly recommend)

Friday: took a bus tour to Windsor Castle, Stonehenge, and Bath to see the Roman baths. I really enjoyed the tour but we were very rushed at every location just to take it in. By the end of the week, you're tired of looking at painting after painting. Again, England really should dress up these buildings with classic furniture so it looks like the mid 1600s.

Saturday: went to Oxford by train — not really much to see there. Took a guided tour, saw a room Harry Potter was filmed in, learned how the school works. I wouldn't go there again

We went in early June. Weather was slightly chilly when clouds were out, hot when the sun was out. Probably the best time of year to go. I wish we could have seen a soccer game, but EPL ends in May.

We stayed in Vonder Hotel Kensington, not far from that Airbnb. It was a great area and felt safe. Had ~20 people in multiple families, so an Airbnb wasn't a great option

Sorry that's a huge wall of random things we did. I really didn't do much planning and assumed we were hitting most of the best things as my uncle has been many times and filtered through what he thought was the best stuff. I loved it and want to go back again with some more free time to explore everything. It's hard to hit museum after museum and continue to actually take it all in.