New video by BBC News on YouTube
Drones called in to save the Great Wall of China - BBC News
Large sections of the Great Wall of China are in urgent need of preservation work, but hard to reach. So drones are coming to the rescue. Please subscribe HERE http://bit.ly/1rbfUog
View on YouTube
Large sections of the Great Wall of China are in urgent need of preservation work, but hard to reach. So drones are coming to the rescue. Please subscribe HERE http://bit.ly/1rbfUog
View on YouTube
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