The project
The Giza plateau holds the Fourth Dynasty’s summit: the Great Pyramid of Khufu (c. 2560 BC), the slightly smaller pyramid of his son Khafre — which cheats taller by standing on higher ground and keeps its cap of original casing — and Menkaure’s more modest third, with queens’ pyramids, boat pits (Khufu’s dismantled cedar ship, excavated 1954, is a 43-metre vessel of astonishing preservation), causeways, temples, and the Sphinx, carved from a knoll of bedrock most Egyptologists assign to Khafre.
The Great Pyramid’s numbers keep their power: originally 146.6 metres tall (the top eight metres and the gleaming white Tura limestone casing are long gone, mostly quarried for medieval Cairo); roughly 2.3 million blocks averaging over two tonnes; sides aligned to true north within a twentieth of a degree; base level to within centimetres. It remained the tallest structure on Earth for over 3,800 years, until the spires of medieval cathedrals — a record unlikely ever to be matched for duration.
Who built it — and how
Herodotus, visiting two millennia after the fact, transmitted the slave-armies story; Hollywood embalmed it. Archaeology has replaced it: excavations south of the plateau (Mark Lehner’s and Zahi Hawass’s teams) uncovered the builders’ town — barracks, bakeries producing bread at industrial scale, breweries, cattle bone from good cuts, medical care visible in healed fractures — and the builders’ own cemeteries, with titles like “overseer of the side of the pyramid.” The workforce reads as rotating levies of ordinary Egyptians — perhaps 20,000-30,000 at peak, organised in named competitive gangs (“Friends of Khufu” survives as graffiti above the King’s Chamber) — paid in rations, working for god-king and afterlife in the flood season’s agricultural pause. The engineering itself — ramps of debated geometry, sledges (a tomb painting shows water poured before a sledge, which experiments confirm halves friction), levers, and relentless organisation — needed no aliens and no whips: the pyramid’s real marvel is the state that could feed, house, and coordinate it, and the papyri of the harbour inspector Merer, found at Wadi al-Jarf in 2013, record his crew barging Tura limestone to “the Horizon of Khufu” — a logbook of the actual work, in the hand of a man who did it.
Afterlives
The interiors were emptied by robbers in deep antiquity — what treasures Khufu held is unknown; the caliph al-Ma’mun’s 9th-century tunnel found the halls already bare. The pyramids have since served as quarry, observatory of cranks (pyramidology’s prophetic-inches school flourished under Victorian engineers who should have known better), Napoleon’s photo-op, and the anchor of Egyptology — with scanning projects still finding voids (the 2017/2023 muon-detected “Big Void” and corridor) inside a building begun 4,500 years ago and not yet done yielding rooms. Of the Seven Wonders it is the eldest — and the only one you can still stand in front of.