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A pyramid is a geometric shape formed by connecting a polygonal base and a point called the apex, by triangular faces. When unspecified the base is usually assumed to be square. One of the platonic solids, the tetrahedron, is a triangular pyramid. The square and pentagonal pyramids can also be constructed with all faces regular, and so count among the Johnson solids. All pyramids are self- dual. The volume of a pyramid is where A is the area of the base and h the height from the base to the apex.
Pyramid-shaped structures were built by many ancient societies. The most famous are the Egyptian pyramids – huge pyramids built of brick or stone, used as tombs for pharaohs. The Great Pyramid of Giza is one of the Seven Wonders of the World, and the only one of the seven to survive into modern times. The ancient Egyptians smoothed the faces of their pyramids with gold and marble, though many of the stones used for the purpose have fallen out over the centuries.
To the south of Egypt the Nubians also built pyramids. They built far more than the Egyptians, but they are much smaller. The Nubian pyramids were constucted at a much steeper angle than Egyptian ones and were not tombs, but monuments to dead kings. Pyramids were built in Nubia up until the 300s AD.
The MesopotamiaThis is an article about the ancient middle eastern region. For the region in modern times, see Iraq, Syria. See also Mesopotamia, Ohio. Mesopotamia ( Greek: , translated from Old Persian Miyanrudan "the Land between the Rivers" or the Aramaic name Beth-Nns also built pyramids called zigguratA zig·gu·rat (zg rt) is a temple tower of the ancient Mesopotamian valley, having the form of a terraced pyramid of successively receding stories. Looking at the dictionary's description above, one can in the most basic ways formulate an image of what a zs, with a distinct series of layers. In ancient times these were brightly painted. Since they were constructed of mud-brick, little remains of them. The biblical Tower of BabelPieter Brueghel the Elder According to the narrative in Genesis Chapter 11 of the Bible, the Tower of Babel was a tower built by a united humanity in order to reach the heavens. To prevent the project from succeeding, God confused their languages so that is believed to be a BabylonBabylon was the capital city of Babylonia in Mesopotamia (in contemporary Iraq, about 70 miles south of Baghdad). The name is the Greek form of Babel which is derived in turn from the Semitic form Babilu meaning "The Gate of God". This Semitic word is a tian ziggurat.
A number of MesoamericaMesoamerica is the region extending from central Mexico south through the northwestern border of Costa Rica that gave rise to a group of stratified, culturally related agrarian civilizations spanning an approximately 3,000-year period before the Europeann cultures also built pyramid-shaped structures. These were also usually stepped, with temples on top, more similar to the Mesoptamian ziggurat than the Egyptian pyramid. The largest pyramid by volume is that of CholulaCholula is a small city in the state of Puebla, Mexico. The legal, though little used, full name of the city is Cholula de Rivadavia . Cholula is located at 19. 31°W, about 15 km west of the city of Puebla, at an approximate elevation of 2135 meters (abou, in the MexicanThis article is about the country Mexico. For other meanings, see Mexico (disambiguation The United Mexican States or Mexico ( Spanish: Estados Unidos Mexicanos or Mexico regarding the use of the variant spelling Mejico see section The name below) is a co state of PueblaPuebla is the name of a city and a state in Mexico. This article is about the state. For the city, see: Puebla. ESTADO DE PUEBLA Other Mexican States Capital Puebla Other major cities Tehuacan Cholula Area33,902 km˛ Ranked 21st Population(2000 census)5,07.
There are other pyramid-shaped ancient monuments found in Central America and parts of Asia.
Pyramids were also found in Greece. One of these pyramids in Greece is older than the pyramid of Cheops, as it was dated to 2720 B.C.
A glass pyramid, built as a feature and as an entrance to the Louvre Art Gallery, Paris, France
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