Having only tried out Scheme and Common Lisp (I loved them both, what little I experienced) in my CS classes back in the day, I have always wondered how comple

Having only tried out Scheme and Common Lisp (I loved them both, what little I experienced) in my CS classes back in the day, I have always wondered how complex programs in these languages actually look like. I feel most examples just are the same list-manipulations / Fibonacci- / prime number calculation ad nauseam. Are there any active projects out there that Lisp family programmers would recommend as a good example of what the language can do and be used for (preferably with common elements such as networking, db connections etc)?