TEHRAN, Iran — They’ve been hidden away in a vault for over three decades, but last week, more than two dozen masterpieces by Pablo Picasso were unveiled to the public for the first time in Iran.

A stellar line-up of international artists, among them icons of the 20th century like Francis Bacon, Louise Bourgeois, Marc Chagall, David Hockney and Pablo Picasso, attracted bidders from 20 ...

Constantly in search of pictorial solutions and in dialogue with his friend Georges Braque, Picasso melded the forms he saw in African sculpture with the fractured compositions he admired in Paul ...