TIL the ancient city of Hieropolis in modern Turkey was thought to be the location of a Gate to Hell by the Romans. This was likely due to toxic levels of CO2 from gas vents that killed animals with noses close to the ground. The vents are bricked up today for tourists’ safety.

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“Bricked Up” 🤨😈

AncapGamingAddict

Because tourists keep their noses to the ground?

RushinAsshat

Co2 ain’t toxic, that’s co1. Co2 can come you tho if the concentration of it is high enough

princB612