History | Ancient History on Instagram: "The Great Pyramid of Giza, built over 4,500 years ago for the Pharaoh Khufu, remains one of the most astonishing architectural achievements in human history due to its immense scale and precise construction. Originally standing at about 146.6 meters (481 feet) tall, it was the tallest human-made structure in the world for more than 3,800 years until the construction of medieval cathedrals in Europe. Even today, it rises to approximately 138.8 meters (455