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Around the year 400 BC, the ancient Northern American city of Teotihuacan was founded. At its height is thought that over 200,000 people lived within its boundaries. Yet, by 750 AD the city had mysteriously collapsed – it became a ghost town. The reason why it was abandoned has been long debated. After all, the structures the city’s people left behind are without a doubt magnificent. 1
In particular there is the Pyramid of the Moon, which is one of the oldest structures in the city. Located at the end of the avenue of the dead, it is connected to the avenue by a large staircase, which leads up to a stage. Upon that platform, lives would have been offered to the great goddess of the city. She was the deity who governed water, fertility, the earth, and even creation itself.2
The sacrificial offerings were so numerous, that the pyramid’s foundation is congested with bones. It is beneath this macabre layer that an enigma can be found.

In early 2017, researchers found a subterranean tunnel that leads to a chamber under the pyramid. It is believed that the tunnel was built to represent a descent into the underworld3, with some even suggesting that the chamber itself may be a gateway into that realm.
This mysterious discovery is still in its infancy, as no one has yet broken ground to examine what lies beneath the chamber. The structure has, however, been mapped using electrical tomography. Once researchers begin excavating the site, it is thought that there may be more mysteries in this underworld. 4
Currently, very little is known about the Mesoamerican people are who built this pyramid and founded the city. It is thought that since this area is largely untouched, further research and excavation may reveal their secrets in the years to come. However, one cannot help but wonder, if there was a sinister reason for this underworld having been sealed up – and the entire city abandoned?
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