Khufu in the context of "Pyramid of Djedefre"

The Great Pyramid of Giza is the largest Egyptian pyramid. It served as the tomb of pharaoh Khufu ("Cheops"), who ruled during the Fourth Dynasty of the Old Kingdom. Built c. 2600 BC over a period of about 26 years, the pyramid is the oldest of the Seven Wonders of the Ancient World, and the only wonder that has remained largely intact. It is the most famous monument of the Giza pyramid complex, which is part of the UNESCO World Heritage Site "Memphis and its Necropolis". It is situated at the northeastern end of the line of the three main pyramids at Giza.

Initially standing at 146.6 metres (481 feet), the Great Pyramid was the world's tallest human-made structure for more than 3,800 years. Over time, most of the smooth white limestone casing was removed, which lowered the pyramid's height to the current 138.5 metres (454.4 ft); what is seen today is the underlying core structure. The base was measured to be about 230.3 metres (755.6 ft) square, giving a volume of roughly 2.6 million cubic metres (92 million cubic feet), which includes an internal hillock. The dimensions of the pyramid were 280 royal cubits (146.7 m; 481.4 ft) high, a base length of 440 cubits (230.6 m; 756.4 ft), with a seked of ⁠5+1/2⁠ palms (a slope of 51°50'40").

In ancient Egyptian history, the Old Kingdom is the period spanning c. 2700–2200 BC. It is also known as the "Age of the Pyramids" or the "Age of the Pyramid Builders", as it encompasses the reigns of the great pyramid-builders of the Fourth Dynasty, such as King Sneferu, under whom the art of pyramid-building was perfected, and the kings Khufu, Khafre and Menkaure, who commissioned the construction of the pyramids at Giza. Egypt attained its first sustained peak of civilization during the Old Kingdom, the first of three so-called "Kingdom" periods (followed by the Middle Kingdom and New Kingdom), which mark the high points of civilization in the lower Nile Valley.

The concept of an "Old Kingdom" as one of three "golden ages" was coined in 1845 by the German Egyptologist Baron von Bunsen, and its definition evolved significantly throughout the 19th and the 20th centuries. Not only was the last king of the Early Dynastic Period related to the first two kings of the Old Kingdom, but the "capital", the royal residence, remained at Ineb-Hedj, the Egyptian name for Memphis. The basic justification for separating the two periods is the revolutionary change in architecture accompanied by the effects on Egyptian society and the economy of large-scale building projects.

30°01′55″N 31°04′30″E / 30.03194°N 31.07500°E / 30.03194; 31.07500

Abu Rawash (also spelled Abu Roach, Abu Roash; Arabic: ابو رواش  Egyptian Arabic pronunciation: [ˈæbu ɾæˈwæːʃ], Coptic: ⲁⲃⲣⲱⲟⲩϣⲓ abrowshi, Coptic pronunciation: [ɑbˈroːwʃi], "flesh of sensual pleasures"), 8 kilometres (5.0 mi) north of Giza, is the site of Egypt's most northerly pyramid, also known as the lost pyramid – the mostly ruined Pyramid of Djedefre, the son and successor of Khufu. Originally, it was thought that this pyramid had never been completed, but the current archaeological consensus is that not only was it completed, but that it was built about the same size as the Pyramid of Menkaure – the third largest of the Giza pyramids. It's believed that the destruction of the pyramid started at the end of the New Kingdom at the latest, and was particularly intense during the Roman and early Christian eras when a Coptic monastery was built in nearby Wadi Karin. It has been proven, moreover, that at the end of the nineteenth century, stone was still being hauled away at the rate of three hundred camel loads a day.

Khafre or Chephren (died c. 2532 BC) was an ancient Egyptian monarch who was the fourth king of the Fourth Dynasty, during the earlier half of the Old Kingdom period (c. 2700–2200 BC). He was son of the king Khufu, and succeeded his brother Djedefre to the throne.

Khafre's enormous pyramid at Giza, the Pyramid of Khafre, is surpassed only by his father's (the Great Pyramid). The Great Sphinx of Giza was also built for him, according to some egyptologists, although this remains unconfirmed. Little is known about Khafre aside from the reports of Herodotus, a Greek historian who wrote 2,000 years later.

Menkaure or Menkaura (Egyptian transliteration: mn-kꜣw-rꜥ; c. 2550 BC - c. 2503 BC) was a king of the Fourth Dynasty of Egypt during the Old Kingdom. He is well known under his Hellenized names Mykerinos (Ancient Greek: Μυκερῖνος, romanized: Mukerînos by Herodotus), in turn Latinized as Mycerinus, and Menkheres (Μεγχέρης, Menkhérēs by Manetho). According to Manetho, he was the throne successor of king Bikheris, but according to archaeological evidence, he was almost certainly the successor of Khafre. Africanus (from Syncellus) reports as rulers of the fourth dynasty Sôris, Suphis I, Suphis II, Mencherês (=Menkaure), Ratoisês, Bicheris, Sebercherês, and Thamphthis in this order. Menkaure became famous for his tomb, the Pyramid of Menkaure, at Giza and his statue triads, which showed him alongside the goddess Hathor and various regional deities.

The Great Sphinx of Giza is a limestone statue of a reclining sphinx, a mythical creature with the head of a human and the body of a lion. The monument was sculpted from the limestone bedrock of the Eocene-aged Mokattam Formation and faces east on the Giza Plateau, on the west bank of the Nile in Giza, Egypt. The oldest known monumental sculpture in Egypt, the Sphinx is part of the Memphite Necropolis and is a UNESCO World Heritage Site.

Archaeological evidence suggests the Sphinx was created by Egyptians of the Old Kingdom during the reign of Khufu (c. 2590–2566 BC) or Khafre (c. 2558–2532 BC). Scholars and Egyptologists believe the face of the Sphinx was carved to represent either the pharaoh Khufu or one of his sons, pharaohs Djedefre and Khafre, but a consensus has not been reached and the person(s) in whose likeness the Sphinx was carved remains in dispute.

The 3rd millennium BC spanned the years 3000 to 2001 BC. This period of time corresponds to the Early to Middle Bronze Age, characterized by the early empires in the Ancient Near East. In Ancient Egypt, the Early Dynastic Period is followed by the Old Kingdom. In Mesopotamia, the Early Dynastic Period is followed by the Akkadian Empire. In what is now Northwest India and Pakistan, the Indus Valley Civilization developed a state society.

World population growth relaxed after the burst due to the Neolithic Revolution.World population was largely stable, at roughly 60 million, with a slow overall growth rate at roughly 0.03% p.a.