'Great ruler': Dwayne 'The Rock' Johnson Showed Off His Muscles On The Great Wall of China

He wrote: 'Originally built in the third century B.C. as a means to protect the Chinese empire against invading barbarian nomads. The Great Wall remains a powerful symbol of China's enduring strength. 

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'After spending time in this country and especially on this wall, there's no denying you feel the power and energy of Chinese Dynasties of the past.'

The actor is currently promoting California earthquake thriller San Andreas, an experience which he recently described as 'more challenging than Vin Diesel'.