Is the World's Largest Pyramid in Egypt?

The Pyramid of Cheops in Egypt is the world's tallest pyramid, at a height of what was once 480 feet. This ancient pyramid covers an area of 13 acres. But there's a pyramid in Mexico that's even bigger!

Called the Quetzalcoatl, this gigantic pyramid near Mexico City was built of sun-dried bricks and earth around the year 100. It's only 177 feet tall, but it covers an area of 45 acres — that's equal in size to about 41 football fields!

Engineers have figured out that the Mexican pyramid contains about a million cubic yards more volume than the Pyramid of Cheops!