Teotihuacan's tunnel (c. 200 CE) extends over 100 meters toward the Temple of the Feathered Serpent, sealed nearly 1,800 years ago. Walls coated with powdered pyrite mimic a galaxy of stars. The floor holds offerings including seashells, jade, obsidian knives, rubber balls, ceramics, and animal skeletons. More than 50,000 artifacts have been recovered from the tunnel.
Teotihuacan Tunnel Contains Mercury and Cosmic Model

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Key facts
- Hidden tunnel discovered in 2003 after heavy rains opened sinkhole near Temple of the Feathered Serpent
- Tunnel descends about 18 meters and extends over 100 meters directly toward pyramid's heart
- Deliberately sealed nearly 1,800 years ago by city's inhabitants
- Walls coated with powdered pyrite (fool's gold) sparkling like galaxy of stars
- Floor strewn with offerings: seashells, jade, obsidian knives, rubber balls, ceramics, animal skeletons
- Three chambers forming cross-configuration beneath pyramid's center discovered
- Miniature mountains built of carved stone and liquid mercury representing rivers found
- Mercury could not have formed naturally there, intentionally transported and poured
- Pyrite, hematite, and magnetite dust used to mimic night sky
- Over 75,000 artifacts catalogued from tunnel
Sources
Teotihuacán tunnel - entrance located. Mexico - Ancient Culturesuniverses.art
The investigations have led to know with certainty that this tunnel was made prior to the construction of the Temple of the Feathered Serpent and The Citadel.
Archaeologists Explore the Tunnel below the Pyramid of the ... - PBSpbs.org
The pyramid represents the heart of Teotihuacan, its central landmark. A tunnel leading directly underneath the Pyramid of the Feathered Serpent must have some ...
News - Teotihuacan's “Powder-Glittered Tunnel” Revealedarchaeology.org
... tunnel beneath the Temple of the Plumed Serpent at Teotihuacan. The tunnel, sealed some 1,800 years ago, contained seeds, pottery ...
50000 artifacts found in tunnel under Teotihuacan templethehistoryblog.com
When last we saw the tunnel underneath the Temple of the Feathered Serpent in Teotihuacan, the remote vehicle Tláloc II-TC had forged 65 ...
Teotihucan: A Land of Pyramids, Secret Tunnels and Robotsblog.hmns.org
It was centered on the Temple of the Plumed Serpent, a sunken plaza large enough to hold most of the city's inhabitants. It was here, in front ...
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