The Giza Pyramids are among the last surviving Ancient Wonders of the World, dating back to the 4^th dynasty (circa 2575–2465 BC). The three pyramids, the largest of which originally measured 481.4 feet (147m) tall, represent three kings: Khufu, Khafre, and Menkaure. Since the Egyptian government’s push to increase tourism in 1975, visitor numbers have surged to around 14 million a year. The Pyramids are pictured here in 1890.

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