The turquoise mosaic of a double-headed serpent is one of the most alluring objects in the British Museum Mexican Gallery. Made over 500 years ago, this icon of Aztec art is admired for its symmetry, beauty and colour. But it is also chilling and disquieting: those perfect curves end in teeth--and those teeth absolutely mean death.
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Ready to Watch Masterpieces of the British Museum, Season 1, Episode 6?