Couple More Additions To "Mirrors In Odd Places"

One in a random nondescriptive alley, and one in a subway station next to a giant monitor screen of all places.  I just don't get it.  Is this a Korean thing?  Because I've never noticed this in L.A.  Are there these random mirrors in unexpected (and largely un-frequented) places in other countries?  In department stores and photo booths, I understand, but why in decrepit alleys where nobody goes, and then ironically enough, right next to advertisements in heavily-trafficked subway stations?  The American in me just doesn't get it.