I was inspired to write about London University’s Senate House by a talk given by Bill Sherman, the Director of the Warburg Institute.  It’s a huge building, but in an odd way invisible and I realised that I had never given it much thought, did not know its history and, not least, that its tower is occupied not by bureaucrats, but by books:-

https://thecritic.co.uk/the-building-that-inspired-orwell/