Where the Great Wall of China Ends! (The part of the wall inside Shanhai Pass that meets the sea is named the " Old Dragon Head" and it's considered the traditional end of the Great Wall and the "First Pass Under Heaven.
Enthusiast Jeff Schultz captures a stunning image of a Mexican Fire Opal that, depending on how you visually interpret it, looks like a beautiful sunset in the clouds or a fiery explosion with billowing smoke. Visit Amazing Geologist for more.
TIL: The crust of the far side of the moon is twice the thickness of the side facing earth. The scorching young earth radiated enough heat to keep the near side - tidally locked even then - molten longer