New Tunnel Discovered Under Ancient Pyramid

Archaeologists think the tunnel under the Pyramid of the Moon in Mexico's Teotihuacán may represent the underworld as part of an ancient belief system.

Archaeologists have discovered a secret tunnel under a famous and massive pyramid in the ancient city of Teotihuacán, northeast of Mexico City.

The tunnel was found under the Pyramid of the Moon, the second-largest structure in the ancient city (the largest is the Pyramid of the Sun), according to the International Business Times. The archaeologists who discovered it believe that it mirrors the Teotihuacans’ great monuments and may represent the underworld in the belief system of the pre-Colombian, 2,000-year-old civilization that built it (a civilization thought to pre-date the Aztecs, who later occupied the site).

The tunnel is long, extending from the central square known as the Plaza de la Luna to the nearby pyramid. It is about 33 feet (10

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