Far, far away on the horizon was something that was not of Earth—a line of misty columns, tapering slightly… — Arthur C. Clarke

Far, far away on the horizon was something that was not of Earth—a line of misty columns, tapering slightly as they soared out of the sea and lost themselves among the clouds. They were spaced with perfect precision along the rim of the planet—too huge to be artificial, yet too regular to be natural.

("Sideneus 4 and the Pillars of the Dawn," said Rashaverak, and there was awe in his voice. "He has reached the center of the Universe."

"And he has barely begun his journey," answered Karellen.)

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