This came across my newsfeed recently. I wonder if this place, like many others we know of, could have been under the control of an ancient society like 13MAGNUS or AntiMagnus. Using myth to protect a powerful secret would certainly be within their modus operandi. Perhaps Hank Johnson can offer an opinion… Investigators, what do you think?

Scientists unravel the mystery of the Roman ‘gate to hell’


Source: Investigate Ingress