5. The Pyramids of Giza

The Pyramids of Giza, particularly the Great Pyramid, are among the most iconic and enduring symbols of ancient engineering prowess. Constructed around 2580-2560 BCE, these structures are composed of approximately 2.3 million stone blocks, each weighing between 2.5 and 15 tons. Despite extensive research, the exact methods used for their construction remain a mystery.
Many theories suggest that advanced techniques, such as leveraging ramps or counterweights, were employed. The precision of the pyramids’ alignment with the cardinal points and their intricate internal chambers raises questions about the technological capabilities and organizational skills of ancient Egyptians, challenging our perceptions of their engineering abilities.