Great Pyramid of Giza

Great Pyramid of Giza
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Name	Great Pyramid of Giza
Caption	The Great Pyramid of Giza (also known as Khufu's Pyramid or the Pyramid of Khufu) is the largest of the three pyramids in the Giza pyramid complex.
Location	Giza, Egypt
Region	Memphis and its Necropolis
Coordinates	29, 58, 45, N...
Built	c. 2580–2560 BC (4th dynasty)
Builder	Khufu (Cheops)
Type	True pyramid
Height	146.6 m (original), 138.5 m (current)
Base	230.33 m
Volume	2.6 e6m3
Part of	Memphis and its Necropolis – the Pyramid Fields from Giza to Dahshur
Ownership	Egyptian government
Management	Supreme Council of Antiquities

Great Pyramid of Giza. It is the oldest of the Seven Wonders of the Ancient World, and the only one to remain largely intact. Constructed as a tomb for the Fourth Dynasty Pharaoh Khufu (also known as Cheops), its completion around 2560 BC marked the zenith of Egyptian pyramid construction. Located on the Giza Plateau on the outskirts of modern Cairo, it is the centerpiece of the Giza pyramid complex, which also includes the Pyramid of Khafre and the Pyramid of Menkaure.

History and construction

The pyramid was built during the reign of Khufu, who ruled from approximately 2589 to 2566 BC. The project was overseen by the king's vizier, likely Hemiunu, and required a massive, state-organized labor force. Construction is believed to have taken about 27 years, utilizing an estimated 2.3 million limestone and granite blocks quarried from nearby sites like Tura and Aswan. The logistics involved transporting materials along the Nile River and across the Giza Plateau using sledges, ramps, and a sophisticated understanding of engineering. The workforce was not composed of slaves but rather skilled artisans and conscripted laborers who were housed in a temporary city near the site, as evidenced by discoveries at the nearby workers' cemetery and settlement at Heit el-Ghurab.

Description and dimensions

Originally standing at 146.6 meters, the structure was the tallest man-made building in the world for over 3,800 years until the completion of Lincoln Cathedral in the 14th century. Its base covers approximately 5.3 hectares, with each side originally measuring about 230.33 meters, demonstrating remarkable precision with an average variance of less than 58 millimeters. The core consists of large, locally quarried limestone blocks, while the exterior was once cased in smooth, polished Tura limestone, which was largely removed in later centuries for building projects in Cairo. The remaining pyramidion or capstone is lost, and the current flat summit platform measures about 10 meters square.

Interior chambers and passages

The internal layout is complex, featuring three main chambers. The subterranean Subterranean Chamber was cut into the bedrock beneath the pyramid but was left unfinished. Above it lies the misnamed Queen's Chamber, though it was never intended for a queen. The uppermost and final resting place is the King's Chamber, constructed entirely from massive blocks of Aswan granite and housing Khufu's empty sarcophagus. These chambers are connected by a series of narrow corridors, including the distinctive Grand Gallery, a 46.7-meter-long ascending corbel-vaulted hall. Two narrow shafts, often called air shafts, extend from the King's Chamber towards the exterior, though their exact ritual or astronomical purpose remains debated.

Purpose and theories

Its primary, established purpose was as a monumental tomb and resurrection machine for the deified Pharaoh Khufu, designed to facilitate his journey to the afterlife among the stars, particularly those of the constellation Orion. This mythological connection is part of a broader funerary tradition linked to the sun god Ra. Over centuries, numerous alternative theories have been proposed, ranging from it being an ancient power plant to a repository of lost knowledge. Some researchers, like Robert Bauval, have posited a correlation between the layout of the Giza pyramid complex and the stars of Orion's Belt, though such correlation theories are not supported by mainstream Egyptology.

Archaeological significance and research

The structure is a foundational site for the discipline of Egyptology. Early explorations by figures like Caliph al-Ma'mun in the 9th century AD and later by John Shae Perring and Howard Vyse in the 19th century revealed its internal configuration. Modern scientific investigations, such as the ScanPyramids project, have employed non-invasive techniques like muon tomography and infrared thermography to detect potential hidden voids, including a significant chamber above the Grand Gallery dubbed the Big Void. Ongoing work by institutions like the Supreme Council of Antiquities and international teams continues to refine our understanding of its construction techniques, precise chronology, and cultural context within Old Kingdom Ancient Egypt.

Category:Pyramids of the Giza pyramid complex Category:Fourth Dynasty of Egypt Category:Buildings and structures completed in the 26th century BC