Kristian Köhntopp had a note post about Google Maps: Blue and Yellow Stars which he could not remove from within Google Maps.
In the end these appear to be bookmarks that you have to remove from Google Bookmarks.
He calls this a “complete UI disaster” to which I totally agree.
Thanks Kristian for sorting that out, as I did give up on that one.
–jeroen
via: Kristian Köhntopp – Google+ – Google Maps: Blue and Yellow Stars For some reasons there….