Image of a flower with blue petals on a blue background. I can almost feel it, beneath my parka. Not quite, but almost: burgeoning, blossoming, a murmur of springtime. At the Solomon R. Guggenheim ...

Sandro Botticelli’s rediscovered and arresting “Man of Sorrows,” due to be auctioned at Sotheby’s on January 27 – with a guarantee of $40 million – has yet to be studied extensively, as it has been in ...