Two girls, strangers, who look almost exactly alike

http://www.cnn.com/videos/tv/2015/04/17/idesk-double-trouble.cnn?iid=ob_article_footer_expansion&iref=obnetwork

Pretty amazing to find someone who looks almost exactly like you!  Take a look at these girls...they look like identical twins.  Once, when I was in San Francisco, a woman came up to me calling me by a different name--and then did a double-take.  She realized I wasn't who she thought I was but said in amazement, "You look exactly like a friend of mine!"  I laughed about it then -- but am thinking it would be a startling experience to meet up with your "doppelganger."