The exhibition, &quot;Roma Aeterna: Masterpieces of the Vatican Pinacotheca. Bellini, Raphael, Caravaggio,&quot; at the&nbsp;State Tretyakov Gallery in Moscow&nbsp;is sold out for the remainder of its duration, said the museum&nbsp;on its website.&nbsp;The&nbsp;Tretyakov&nbsp;earlier wrote on its VKontakte social media page that it was selling an additional 30,000 tickets for the exhibition&nbsp;via its official website&nbsp;starting Jan.&nbsp;13.&nbsp;The exhibition originally opened on&nbsp;November 25, and includes paintings by Caravaggio, Raphael, Giovanni Bellini, Guercino, Pietro Perugino, and Guido Reni. These masterpieces are very rarely displayed outside the Vatican.&nbsp;The exhibition&nbsp;runs until&nbsp;Feb.&nbsp;19.Battle for art: Crowds flock to Moscow gallery for Vatican exhibition