Only from the air are we able to see the faint traces of ancient settlements and monuments left by our ancestors. English heritage take to the air and reveal cropmarks, enclosures and ditches of neolithic settlements.

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Story: Hidden Civilisations

Duration: 5:02

Only from the air are we able to see the faint traces of ancient settlements and monuments left by our ancestors. English heritage take to the air and reveal cropmarks, enclosures and ditches of neolithic settlements.

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