Mind Blowing Mars Structures That They Said Did Not Exist

Among the amazing pictures taken of Mars, were what appeared to be giant pyramidal structures and a helmeted humanoid face in a region of Mars called Cydonia. The public was not informed of the huge potential importance of these pictures. Any initial speculation regarding their extraterrestrial origin was met with the pseudo scientific answer that it was all just an accidental play of light and shadow. Take a look for yourself at the structure in this video and you be the best judge of accidentally perfect symmetry!
Nasa repeatedly denied the huge importance of these findings and when it was requested live images be broadcast during the future Mars missions, Nasa refused. They also said that only certain images (photos) would be released to the public and that they would decide which ones! Are they hiding the fact that an ancient civilization once flourished on Mars and possibly even visited Earth?