Hi! I have a list of the best non-fiction books of all time for you at
https://booksrun.com/blog/the-10-best-nonfiction-books-of-all-time/. There are really a lot of interesting recommendations there. Personally, I really enjoyed God: An Anatomy By Francesca Stavrakopoulou and The Death and Life of Great American Cities By Jane Jacobs. These books changed my perception of the world and helped me better understand various aspects of human history and culture.