17 Asonતુ
117 એપિસોડ
Secret History - Season 14 Episode 4
With access to the first nationwide survey and state-of-the-art drones mapping the Great Wall of China, this documentary offers new evidence that reveals its extraordinary magnitude, rewrites its millennia-long history and decodes its complex signals system. Using cutting-edge chemistry, the programme also finds out what has kept the wall standing for so long - a simple cooking ingredient found in kitchens across the world.
- વર્ષ: 2017
- દેશ: United Kingdom
- શૈલી: Documentary
- સ્ટુડિયો: Channel 4
- કીવર્ડ:
- ડાયરેક્ટર: Nick London
- કાસ્ટ:
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