It's hard to understate how seminal Lisp was.
I don’t disagree but the OP was asking for examples of production code to look at
I don’t disagree but the OP was asking for examples of production code to look at
Maybe you aren't seeing Lisp itself in production code (although someone suggested Emacs which is Lisp), but you see it's ideas and influence in almost every language and program you'd find today. There's little bits of Lisp everywhere you look, even if you don't recognise it as Lisp.