The image I have included is the most famous image of a face on Mars. The structure makes up part of the city of Cydonia on the planet Mars. The face measures in at 1.6 miles in length and just under 2,000-ft in height.
NASA claim that the appearance of a face is due to a psychological phenomenon known as paraedolia, or apophenia. However,
the alignment of the pyramid-like structures at Cydonia are aligned in
perfect conjunction with the pyramids in Egypt on Earth.
Also, on further comparative investigation, analysis and technical
inspection, NASA image analysts have confirmed that the structure even
has teeth in it's mouth, bilaterally crossed lines above the eyes,
bilateral symmetry of the face and regular lateral stripes on the
head-dress confirming that the anomaly must be an artificial structure.
What's even more fascinating about this is that the Giza monuments on
Earth form an accurate terrestrial map of the three stars of Orion's
belt and therefore there could be a very strong link between Giza and
There are, of course, several other images of faces on Mars too.
[ Image belongs to NASA and is therefore in the public domain ]