New Scans Reveal the Lost Tunnels of Teotihuacan

A LiDAR and Radar Journey into the Pyramid of the Sun’s Hidden Underworld

By: Eleanor Whitecombe

Narrated by: Virtual Voice

What Lies Beneath the Pyramid of the Sun That Mexican Authorities Have Sealed Off Since 2013?

A river of liquid mercury. Thousands of pyrite spheres. A tunnel network mapped by LiDAR that extends far beyond the excavated chambers and a permit suspension that has never been explained.

In 2003, a rainstorm opened a sinkhole at the base of the Pyramid of the Sun. A camera lowered into the shaft revealed cut stone walls and a tunnel sealed with twenty tons of rubble. What followed was one of the most extraordinary archaeological excavations of the twenty-first century—and one of the most quietly suppressed.

Ground-penetrating radar and LiDAR surveys have since confirmed that the tunnel network extends well beyond the original dig, toward chambers that have never been opened. The data is published. The coordinates are public. The excavation remains suspended.

Inside this investigation, you will discover:

• The moment a sinkhole cracked open the plaza floor: And what the first camera revealed at the bottom of the shaft.

• The 103-meter tunnel aligned to the pyramid's central axis: How its precision proves the pyramid was built to seal something below—not just to rise above.

• The four clover-shaped chambers at the tunnel's terminus: A layout that matches no known Mesoamerican tomb design.

• The river of mercury and the miniature underworld: Why the builders sculpted a landscape and filled its channels with liquid metal.

• The LiDAR scans that extended the map: New chambers beyond the eastern wall that no one has been permitted to excavate.

The Pyramid of the Sun has held its secret for fifteen centuries. The question is whether the gatekeepers will allow anyone to find out what it is.

Scroll up and click "Buy Now" to follow the scans from the first sinkhole to the sealed chambers still waiting beneath the plaza.