There's something special about a really interesting book that's good just because the writer is good at writing about their area of expertise, not because it's full of things you wanted to know about. I've seen people try and find these books by asking questions like - what book in your area of study would you recommend to a layman? I thought I'd go the other way.
So - what have you read that was great even though you're not interested in the subject matter. I''ll offer these:
Structures, or Why Things Don't Fall Down, by J E Gordon. Learn the elements of engineering. I had no idea about any of this.
Playing Hard Ball by Ed Smith. First class cricketer compares his game to baseball. Insights into why anyone would care about either.