P20096.JPG [2/9] Keywords: Library of Hadrian Caption: The Library of Hadrian. Detail of the northern wall of the western forecourt and northern end of the propylon. The column on the left is made of marble from Karystos on Euboia (also called cipollino marble). The Corinthian column on the right is of Pentelic marble. Between the two columns you can see the remains of painted frescoes from a church that once stood here. View from the northwest.