Without a doubt, London is one of the greatest cities in the world, and history is at every step and turn. My wife and I just returned from a vacation in London, which neither of us had visited in decades. I'm going to try to offer a few tips and suggestions aimed at historically-minded travelers, especially first-time visitors or visitors who haven't been in a while.
Planning
There is so much to see and to do in London that planning is absolutely essential. We got a guidebook, listened to a Great Courses history of London lecture series, and started following travel content creators on YouTube and Instagram, and we made lists of things we wanted to do and see. We compared our lists and prioritized. Then we grouped destinations based on their place within the city. London is huge, and you run the risk of spending most of your day in transit if you don't group. It's OK to overplan. Things happen, and you probably won't get to everything on your list, so it's important to prioritize. I would advise picking a couple of things per day.
Another important reason to plan ahead is that many museums and activities limit admittance, and you have to book an entry time in advance. While many museums are free, they ask (multiple times) for donations. All of the information will be on their websites. The British Museum requires advance bookings, but the Victoria and Albert Museum does not. Both of those museums are free. However, they have special exhibits throughout the year that require separate tickets and admission fees. These tickets tend to sell out fast. Other attractions like The Shard, the Sky Garden, and the London Eye also require advance tickets. (Obvious tourist traps like the Shard and the London Eye are also very expensive and frowned on by social media travel advisors.)
Once you select the dates of your visit, you will also want to search for concerts, shows, festivals, and other special events. London is home to the West End theater district where you can see fantastic musicals, comedies and dramas with superstar casts, and the prices may be lower than Broadway prices. You can book tickets in advance or, like New York, find the discounted day-of ticket kiosk at the TKTS booth in Leicester Square. Your favorite comedians and music artists may also be performing while you're in town. You may find one of your favorite authors doing a book talk in a book store. Search the internet for events during your travel and keep an eye out for posters and signs while you're there. You never know what you'll find.
Being Uncomfortable
I'm just going to say it: I'm huge and monstrous. Small children flee in terror as I stomp through their city, Godzilla-style. I'm 6'4" and 300 pounds. I HATE every single thing about airplanes except that they are necessary evils to get me places. I have never been comfortable on a plane and never will be. I lucked out - actually planned ahead - and scored exit row tickets on our British Airways flights for the leg room. That part worked out well, but there are some drawbacks to exit row seating: next to toilet, fixed permanent armrest, super-narrow seats, lack of space to stow your bags near your seat.
Part Two's topics next week will include The Tube, Restaurants/Food, and Tours