Laocoon and his Sons - Unknown
Also called the Laocoön Group, this is one of the most famous ancient sculptures excavated in Rome in 1506, and placed on public display in the Vatican, where it remains. Exceptionally, it appears to be identifiable with a statue praised in the highest terms by the main Roman writer on art, Pliny the Elder.
The group has been "the prototypical icon of human agony" in Western art, and unlike the agony often depicted in Christian art showing the Passion of Jesus and martyrs, this suffering has no redemptive power or reward. The suffering is shown through the contorted expressions of the faces (Charles Darwin pointed out that Laocoön's bulging eyebrows are physiologically impossible), which are matched by the struggling bodies, especially that of Laocoon himself, with every part of his body straining. (Wikipedia)