![48. For almost four millennia, the Pyramid of Khufu (aka The Great Pyramid of Giza) was the tallest man-made structure in the world, and it remains the only one of the Seven Wonders of the Ancient World that is still essentially intact. This is a square pyramid, with a base side length (L) of 813 feet [ft]. The volume (V) of the pyramid is 2.946 x 10 liters [LJ. The vol- ume (V) of a pyramid with a square base is given by V=](http://d2vlcm61l7u1fs.cloudfront.net/media%2F47a%2F47acf90f-ee70-48af-bade-b457dccb2887%2FphpkutaWD.png)
48. For almost four millennia, the Pyramid of Khufu (aka The Great Pyramid
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![48. For almost four millennia, the Pyramid of Khufu (aka The Great Pyramid of Giza) was the tallest man-made structure in the world, and it remains the only one of the Seven Wonders of the Ancient World that is still essentially intact. This is a square pyramid, with a base side length (L) of 813 feet [ft]. The volume (V) of the pyramid is 2.946 x 10 liters [LJ. The vol- ume (V) of a pyramid with a square base is given by V=](http://d2vlcm61l7u1fs.cloudfront.net/media%2F47a%2F47acf90f-ee70-48af-bade-b457dccb2887%2FphpkutaWD.png)
48. For almost four millennia, the Pyramid of Khufu (aka The Great Pyramid
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