We are aware that many things were discovered and invented by the ancient Egyptians, who were smart and interesting people. Today we have very few things that allow us to get in the picture like various paintings and artifacts.
But the Egyptians were also known for the huge structural marvels and architectural achievements they used to build, among which being the Sphynx and the other pyramids. When scientists find such ancient monuments, we get a step closer to understanding their lives.
It was hidden underneath the slums of Cairo, Egypt and was more than 3,000 years old, which made it perhaps one of the most important discoveries ever made.