I've recently rediscovered the Pro Wrestling of my childhood. It was huge when I was growing up and I get nostalgic when watching old matches.
Also museums, any museum regardless of subject and delis. I'm always looking for something new to try. I can't walk past a deli or Chinese/Japanese/Turkish etc store.
There are others too but I'll have to think about them.
No judgement because there are plenty of things they love that don't appeal to me but is there anything you love that puzzles your family or friends?