The Great Pyramid of Giza (also known as the Pyramid of Khufu or the is the oldest and largest of the three pyramids in Giza , not only that but also It is the oldest of the Seven Wonders of the Ancient world.

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Construction :

The Great pyramid of Giza was constructed between 2580-2560 BC, with base width of 230 meters (756 ft) and height of 146 Meters (481 ft) and the materials used were Limestone and Granite and the sides have a slope of 51°, and it was recorded as Tallest building in the world from 2560 BC to 1311 AD.

Materials:

The Great Pyramid consists of an estimated 2.3 million blocks which most believe to have been transported from nearby quarries. The Tura limestone used for the casing was quarried across the river. The largest granite stones in the pyramid, found in the "King's" chamber, weigh 25 to 80 tonnes and were transported from Aswan more than 800 km (500 mi) away.Ancient Egyptians cut stone into rough blocks by hammering grooves into natural stone faces, inserting wooden wedges, then soaking these with water. As the water was absorbed, the wedges expanded, breaking off workable chunks. Once the blocks were cut, they were carried by boat either up or down the Nile River to the pyramid. It is estimated that 5.5 million tonnes of limestone, 8,000 tonnes of granite (imported from Aswan), and 500,000 tonnes of mortar were used in the construction of the Great Pyramid.