@CNN: Scientists unravel the mystery of the Roman “gate to hell,” which was thought to belch a “breath of death” that caused animals from birds to bulls to drop dead at its entrance https://t.co/SaEEMuZwta https://t.co/PZwNG0oFub

@CNN: Scientists unravel the mystery of the Roman “gate to hell,” which was thought to belch a “breath of death” that caused animals from birds to bulls to drop dead at its entrance https://t.co/SaEEMuZwta https://t.co/PZwNG0oFub