THE sky cracked over Leinster House last week.

FINANCIALLY, the internet has been no friend to the music, newspaper or book businesses. But it’s doing wonders for the art world. According to a recent report by art insurers Hiscox, the value of the global online fine art market is set to more than double, from an estimated $1.57 billion in 2013 to $3.76bn by 2018.

From Machu Picchu to King Tut’s grave, the ‘National Geographic’ auction takes us on a rich pictorial history, writes Trevor Coin

Frankenweenie ***