Can you solve the Leonardo da Vinci riddle? - Tanya Khovanova
5 years ago
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[{"text":"You've found Leonardo da Vinci's secret vault, secured by a series of combination locks. Fortunately, your treasure map has three\u00a0..."}]
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{"title":"Can you solve the Leonardo da Vinci riddle? - Tanya Khovanova by TED-Ed 4,004,873 views 5 years ago 5 minutes, 8 seconds","duration":"5 minutes, 8 seconds"}