Secrets of the Stonehenge Skeletons is being shown on Channel 4 at 8pm on March 10. @MailOnline

He added: 'It's something that's Glastonbury festival and a motorway building scheme at the same time. It's not all fu...

He added: 'It's something that's Glastonbury festival and a motorway building scheme at the same time. It's not all fun, there's work too.'

The team's decade-long work has confirmed there were two Stonehenges, with the first a large circular structure constructed around 500 years before what we know of as the site, which was a cemetery for high-class families.

As a result of the scientific analysis they have concluded the second Stonehenge was built slightly earlier than previously thought, 4,500 years ago rather than 4,300 years ago.

This gives a clue to the decline of Stonehenge, as it means it was built before the arrival of the 'Beaker people', who arrived in Britain from the continent around 4,300 years ago.

The Beaker people brought metal, the wheel and a less centralised political culture to Britain, bringing an end to the mass monument building of the Ancient Britons.

Prof Parker Pearson said his research would now focus on looking at the sources of the stones used at Stonehenge, exploring both the local site and the west Wales area where stone was brought from.

Secrets of the Stonehenge Skeletons is being shown on Channel 4 at 8pm on March 10.