The Devil in the Flames

In 2001 there was a fire at several warehouses in Monterrey, Mexico.  News crews showed up to videotape the event and, when the cameramen made a slow review of the footage, they found what appears to be a Satanic face in the flames.

On can attribute this to coincidence as the human eye will often see faces where none exist, but the detail of this devil's grin is enough to make anyone look twice and think.