I foolishly selected the 'sharePoint - 80' Application and clicked the DELETE button.
This seemed to remove the App: However, it appears IIS doesn't like what I did and I need to recover.
There is no backup and nothing is in the cloud. So I need to start over since I don't find any simple way to recover from this foolish mistake. Not a big deal since this is only a test setup for learning and I just learned my first lesson; don't delete the root site. However it would be nice to know if there were an easy way to recover from such a disaster should it happen in the future.