Answer: The Great Pyramids of Giza pyramids
Explanation: Those shadows, and the small speck right below them, are actually some of the most mind-blowing constructions ever built by humans. They are three of the most well-known ancient Egyptian pyramids: the Pyramids of Giza. The largest of the three is nearly 500 feet tall, but from space it just looks like a tiny smudge in the Egyptian desert.