Archaeologists have discovered the ruins of an 800-year-old Aztec pyramid in the heart of Mexico ... find soon should tell us much more about the society of Tlatelolco," said Ledesma.

Here, we dive into the largest pyramid in the world (an incredible Aztec achievement) as well as four other awe-inspiring ones. 5 of the Largest Pyramids by Volume Egypt is home to a few of the ...