Astronaut Ricky Arnold captured from ISS Khufu’s Pyramid, Egypt.

Credit: Ricky Arnold, NASA

A pyramid is a structure whose outer surfaces are triangular and converge to a single point at the top, making the shape roughly a pyramid in the geometric sense. The base of a pyramid can be trilateral, quadrilateral, or of any polygon shape. Khufu’s Pyramid, built mainly of limestone (with large red granite blocks used in some interior chambers), contains over 2,000,000 blocks ranging in weight from 2.5 – 15t and is built on a square base with sides measuring about 230m, covering 13 acres.

The local scenery on the ground is as follows.

Credit: Wikipedia

Reference: Ricky Arnold’s Tweet
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