5 Most MYSTERIOUS Photos From Mars

Presenting the five most mysterious pictures from Mars, including a strange blotch spotted by NASA's Curiosity rover only seconds after landing on the Red Planet, mysterious possibly artificial lights seeming to shine up from underground, the Mars monolith, massive holes and underground caverns that could harbor life, and a strange collections of photos that seem to show impossible scenes from a humanoid to a rabbit to signs of ancient civilization, and even trees...