Duh.
And every sky is unique. (I should keep that for another post title. Darn.)
For some reason I don’t see a thumbnail. Oh whatever. Taken along a highway, a picture of a sky no one would stop to stare at. The camera does wonders, picking away the unnecessary bits to present to the world a thing of beauty (though I don’t presume to call the picture beauty, it is a sky, and skies are worth it. I don’t understand the sentence either.) which might never be known otherwise.
Preservation of nature: unneccesary, but pretty.