Can You Crack The UK Spy Agency's Christmas Code-Breaking Challenge?
- The challenges require codebreaking, math, lateral thinking, and a bit of ingenuity to reveal the name of a famous UK landmark. There are also three additional hidden elements in the pictures for those seeking an extra challenge.

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[ https://www.iflscience.com/can-you-crack-the-uk-spy-agencys-christmas-code-breaking-challenge-77175 ]