I'll be in London for a week in February which will be my 4th time there, 3 of which have been a week or longer stays. These have spanned a lot of time and conditions, from being a budget backpacker right after college (visiting 10 countries over 2 months) to spending Christmas in London with my (then) late teen daughters a few years ago. This upcoming visit will be a solo trip where I plan to revisit some favorite museums and linger wherever I feel like it - general focus around art and history.
I have gone through periods of life where I'd rather see new places than return, and after that initial visit to London in the mid 90's had no plans to go back, eager to explore the unknown. More recently, I've come to appreciate the insights available from returning to a place over time, observing small changes more intimately. This is due in part to spending considerable time in a popular national park near my home in Washington state, and witnessing the magnitude of change that happens in one space over time - quite different than a single snapshot of a place we only visit once.
As travel styles and interests vary widely, I'm not necessarily looking for specific recommendations, but I'm curious: what places in London have drawn you back on repeat visits? A favorite museum, coffee shop or pub? People watching in a certain park? What do you enjoy about the act of returning?