The Barbican is one of my favorite places on Earth and this post in a simple way does such a good job of capturing the beauty and wonder I associate with it. Others have mentioned the greenhouse and the concert hall; I’ll the exhibition space which consistently hosts great exhibits including the only good AI-themed museum exhibit I’ve ever seen (and it was back in 2019).
For those interested / invested, they recently launched a Barbican renewal project: https://www.barbican.org.uk/our-story/press-room/barbican-un...