CAPTCHAs don’t prove you’re human – they prove you’re American (2017)
I hate these things.  I failed a few because I was skipping ones that asked me to identify "crosswalks", only to discover about a month later that I was misunderstanding it to mean a skywalk bridge between two buildings.  What actually reinforced this mistaken belief was that recaptcha actually called them "zebra crossings" until very recently.