The "Face on Mars", as subsequent photos have proved, only resembles a face when viewed from the correct angle, at the correct time of day (or, if we're being pedantic, at the correct time of sol...). From other angles, and with the shadows falling in other directions, it's revealed to be a random jumbling of boulders. Only the human need to impose visual patterns makes a "face" appear at all.
I have seen no pictures of pyramids on Mars. Have you a reference for this?
As for busting the myth, I thought it was sufficient to see that the link was to Fox News...
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Sodium is a metal that reacts explosively when exposed to water. Chlorine is a gas that'll kill you dead in moments. Together they make my fries taste good.