Since I can't run anymore - - I can barely walk without an oxygen tank - - I stumbled upon some YouTube "virtual" runs, created to watch while running on a treadmill. I can't do that, but I can watch and listen to some awesome runs and imagine myself doing the running. (I often dream at night about me running!)
This is a cool one I just "completed."
https://www.youtube.com/watch?v=CILAZwcScuk
CHEERS!