Hieroglyphs, detail from the Obelisk of Queen Hatshepsut, New Kingdom, Dynasty XVIII, reign of Hatshepsut, ca. 1478–1458 BC. | The second biggest of all the ancient Egyptian obelisks. Made of one single piece of granite, it has a height approximately of 30 metres and its weight is approximately 350 tons. An inscription at its base indicates that the work of cutting the monolith out of the quarry required 7 months of labor. Karnak. Egypt.