" At present there are only two land-based cranes in the world that could lift weights of this magnitude. At the very frontiers of construction technology, these are both vast, industrialized machines, with booms reaching more than 220 feet into the air, which require on-board counterweights of 160 tons to prevent them from tipping over. The preparation-time for a single lift is around six weeks and calls for the skills of specialized teams of up to 20 men.13 In other words, modern builders with all the advantages of high-tech engineering at their disposal, can barely hoist weights of 200 tons. Was it not, therefore, somewhat surprising that the builders at Giza had hoisted such weights on an almost routine basis? "

― Graham Hancock , Fingerprints of the Gods: The Evidence of Earth's Lost Civilization