Are structures whose outer surfaces are triangular.
Pyramids have been built by civilizations in many parts of the world.
For thousand of years they were the largest structures on Earth.
The Mesopotamians built the earliest pyramidal structures, called ziggurats.
In Ancient times they were brightly painted in gold or bronze.
The most famous pyramids are the Egyptians-huge structures of brick or stone-Some of them are
among the world ´s largest constructions.
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After 2700BC until about 1700BC the Egyptians built pyramids.
Most pyramids are located near Cairo.
There are over one hundred pyramids in Egypt.
The Great Pyramid of Cheops is the largest and most ancient one.
It is one of the most legendary monument in the world.
