Which is older the great wall of China or hadrians wall?

Hadrian's Wall is older than the Great Wall of China. Hadrian's Wall was constructed beginning in AD 122 during the Roman Empire, while the earliest sections of the Great Wall of China were built in the 7th century BC, with significant expansions occurring later. However, the most recognizable parts of the Great Wall were constructed during the Ming Dynasty, starting in the 14th century.