|n the original documentary a team of volunteers successfully moved a huge stone|
Another attempt is to be made to solve the mystery of how the largest stones used to build Stonehenge were moved.
Since then the concrete replicas have remained untouched and forgotten about at an army base on Salisbury Plain in Wiltshire.
They have now been rediscovered and the experiment will be repeated.
Archaeologist Julian Richards is teaming up with farmer Tim Daw see if modern techniques are any more efficient... (Video) bbc.com/