The history behind the week's headlines, with Mark Urban.
As work continues on the Millennium project at Greenwich, a look at the British obsession with domes as sites of national celebration, from the rejected
Isambard Kingdom Brunel design for the Great Exhibition of 1851 to the Dome of Discovery at the 1951 Festival of Britain. And, as the summer solstice approaches, there's an evaluation of the beliefs of modern druids.