Weeelll, I don't find Ansel Adams's work very interesting. I have several coffee table art books, some of which have old west landscape pictures, and it's the people in them that make it work.
Something I do with my friends is look at Annie Liebovitz portraits and try to recreate the ones we like.
That’s totally fair if Adams’s doesn’t do much for you. Regardless, I’m in agreement with you that most landscapes are not actually that interesting without people in them. Humans are naturally drawn to images of other humans.