Sigil of Baphomet
The sigil of Baphomet is a sigil of the material world, representing carnality and earthly principles.
While the eponymous Baphomet had been depicted as a goat-headed figure since at least 1856, the goat's head inside an inverted pentagram was largely popularized by the modern Church of Satan, founded in 1966. The Church adopted the sigil of Baphomet as their official insignia, describing the symbol as the "...preeminent visual distillation of the iconoclastic philosophy of Satanism."