On CBS Sunday Morning today (January 25th, 2015), there is a story about the archaeological work which is working to discover the secrets of Stonehenge.  The story discusses newer techniques using underground imaging to reveal never before seen details of what Stonehendge was back when it was built.  These techniques have shown the positions of missing parts of the monument and long buried locations and features in the surrounding countryside.  The Smithonian Channel has a documentary that is the basis of this report.

And they’re being looked at in a way that’s never been possible before, using high definition, ground-penetrating radar and other magnetic- and resistance-sensitive survey equipment in what’s being called the Hidden Landscapes Project.

A documentary team from the Smithsonian Channel has been following the archaeologists around; and — using computer generated imagery — it’s been digitally reconstructing some of the monuments that have long since disappeared, like a burial chamber built of wooden posts, with timbered walls and covered with earth. It predates Stonehenge by centuries, and would have held the remains of around 50 bodies.