Do you believe we were there before ? How did these structures get there ?
There are numerous images taken on Mars which depict what appear to be buried artificial structures on the Surface of Mars.
Carl Sagan noted so succinctly in “Cosmos“: “The first indication of intelligent life on Earth lies in the geometric regularity of its constructions…”
Interestingly, a recent study has even concluded that in the distant past Mars’ shallow lakes may have once sustained life. Basins covered in lava and water could have sustained the necessary conditions for microbes to survive. The study performed by scientists from the Planetary Science Institute in Tuscon, Arizona suggest that basins on Mars could have been covered with lava and water over the course of hundreds of millions of years. This ideal mixture created ideal temperature ranges, water pressure and nutrients and life as we know it could have made it on Mars. The new study claims that gigantic lakes could have formed within these lava-filled basins.