What on Earth?

Strange Things in the Desert (2x10)

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Night images of Western Australia show lights in areas where there shouldn't be any, even more light is seen in the desert than in the big cities on the coast; in 2005 an earth observation satellite see a fleet of large ships stranded in the middle of a vast desert miles from the Aral Sea in Kazakhstan; an amateur archeologist in North Carolina, USA sees in satellite images what may be undiscovered pyramids in the Egyptian desert; huge arrows are discovered scattered across Nevada further investigation finds that these arrows are all over the American west, but what do they point to; a mile long series of honeycomb shaped holes is seen in the Andes mountains of Peru