Did you know that the world's largest pyramid is not in Egypt? The Great Pyramid of Cholula is a massive ancient structure located in Mexico that covers an area of over 4 acres. It was built by the ancient Maya people and is actually a series of structures built on top of each other over the course of many years. The pyramid is not as tall as the Egyptian pyramids, but it covers a much larger area, making it the largest pyramid in the world by volume.