Standing more than 200 feet tall, the Pyramid of the Sun, located in central Mexico about 30 miles northeast of Mexico City, is one of the largest such structures in the world. The building, roughly 1,800 years old, likely contains about 1 million cubic yards of volcanic stone and other materials. It was the grand monument of Teotihuacan, one of the largest cities in the world in its heyday from the second to the sixth centuries.
But who built the awe-inspiring structure? And how was this massive pyramid — which would go on to inspire the Aztecs centuries later — built, and why?
While questions like these continue to perplex scholars and the general public alike, archaeological research over the past few decades has greatly increased our knowledge about this mysterious monument.