So when I lived in London, I lived near Edgware Road. It’s not an area I hung out in tons (except I’d go to the pub next door to my flat, because of course), but it was close to Marble Arch and Hyde Park.
Marble Arch is the start of a major shopping area. And if you follow the shopping street from there, it can take you through Covent Garden (which had this one little alley with old booksellers and other cute things like that; I luckily stumbled upon it again when I was there a few weeks ago!) and Trafalgar Square I think and eventually all the way to the Thames. Primark is the only shopping I loved in London. It’s kinda like H&M, so it might not be a crazy must-see, but it was astonishingly cheap [like sneakers for two pounds] and it gets super swamped.
Hyde Park! Famous park. Huge. Speaker’s Corner is a corner where there is a literal soapbox and anyone can stand on it and start talking about stuff. There are sometimes festivals and things here, or crowds gathered to watch football games on screens and whatnot, so you might wanna look up to see if anything cool is going on there.
National Portrait Gallery in Trafalgar Square Victoria & Albert Museum (I genuinely got lost in here.)
See a show - it’s totally fine to stop in one of those storefronts for tickets, though I prefer the TKTS booth in Leicester Square. If you want a cool, less touristy theatre experience, the National Theatre of London is famous and often offers cheaper tickets for people under 35. You can buy in advance or at the theatre if still available.
(You can do the Shakespeare Globe theatre, and get one of the standing tickets in front of the stage, but…if it rains… you will be miserable [said from experience]). Royal Shakespeare Company also offers cheap day-of tickets for young people I think.
Camden Town/Camden Lock is a trendy area. You might run into celebrities in the Whole Foods, haha. I went to school near here. It’s near water, and the Camden Market is a big deal.
Brick Lane is very cool. I was only here once, but wish I’d gone more. They have a market as well, lots of indian food.
Tower of London. I took this on my first trip to LDN in 2005, and again when I was living there. I’m not always one for tours, but it was great. And you can see the Crown Jewels, which are pretty incredible too.
Walk across the Tower Bridge.
Borough Market (supposedly awesome grilled cheese cart here)
St. Paul’s Cathedral/Millennium Bridge