Apollo Belvedere of aesthetic perfection for Europeans and westernized parts of the world. It is now in the "Cortile del Belvedere" of the Pio-Clementine Museum of the Vatican Museums complex. The Greek god Apollo is depicted as a standing archer having just shot an arrow. Although there is no agreement as to the precise narrative detail being depicted, the conventional view has been that he has just slain the serpent Python, the chthonic serpent guarding Delphi—making the sculpture a "Pythian Apollo". Alternatively, it may be the slaying of the giant Tityos, who threatened his mother Leto, or the episode of the Niobids.
Double-headed serpent only 25 Mexican turquoise mosaics in Europe from this period. Many theories suggest the symbolic significance of the serpent imagery. It has been proposed that the serpent was a symbol of rebirth because of its ability to shed its old skin and appear as a reborn snake. It may have been a representation of the earth and underworld with each head representing one. The snake features strongly in the gods that the people worshiped. The feathered serpent god Quetzalcoatl was important to Mixtec religion, but other gods also had serpentine characteristics. This sculpture featured in "A History of the World