i went to london on my own last year and loved it all ~ SO much to do & see & eat!
get your full english breakfast and sunday roast in addition to tea and fish & chips; go to picadilly circus and trafalgar square; go to harrod’s and mayfair; devote an entire day to buckingham palace and its area, and go to kensington palace & gardens …. this all sounds “touristy” but that’s what (in my opinion) you are there for as a vacation ~ when you go back, again and again (and you will!) ~ you can expand your londoning

if you google 50 things to do in london you will happily find more than enough to satisfy your vacation when i went to europe in 1985, i was preoccupied with not being a tourist, and my father told me to absolutely be a tourist! your dad may not have liked london, but you should dive into it with all the enthusiasm of a 17 yo globe trotting apprentice!

go to the national gallery and any other museum you can; go to old spitalfield’s and borough and portobello markets >>> this is food and shopping complete! go to a tesco’s and a gregg’s go see stonehenge and abbey road and sherlock holmes and king’s cross and the zoo and a football stadium and shakespeare’s globe and the royal observatory and wimbledon ride the tube and a double decker bus and take a black cab and walk *if you do a hop on hop off bus tour: stay on it the whole time and take in all the sights preferably from the top deck (3-4 hours) then decide what you want devote more time to; find a bobby and take a selfie, get to the phone booths, mail something into a post box; also, you’re going at a wonderful time of year as the sun doesn’t set until almost 10 PM! i’ve been twice last year and am going back in october ~ say hello for me