Alien artifact found in a secret tunnel in Mexico

[Insider]

Mysterious tunnel discovered by accident in Mexico

And this will never be open to the public.

Archaeologist Sergio Gomes works on the conservation of the Quetzalcoatl temple

In 2003, a storm opened a hole in the ground and the next day Gomez, with the help of ropes and workers, pierced that hole and discovered an ancient alien craft