The discover section of the site provides an insight into the science behind the study of Leonardo's work, including explanations and images of infra-red, ultra-violet and my favourite, the "computed axial tomography" of some of da Vinci's work.

BBC: 8bitpeoples

You do not need to be uber-wealthy or ultra-attractive to get past the red rope here, just confident.

BBC: A guide to Miami nightlife

"All of those are impacting CEOs' levels of confidence to really deal with their businesses on a go-forward basis, " he said in the PwC Lounge, an ultra-chic Davos party room with white sofas and chairs and orange and red flowers.

NPR: CEOs Head To Davos More Pessimistic About 2013

In a room next to the garage housing two shiny red trucks and an emergency vehicle, 20 people took part in this experiment in ultra-democracy.

BBC: Mitt won, but does he look like a winner?