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.
Hydra (constellation) It is one of two Babylonian "serpent" constellations (the other being the origin of the Greek Serpens), a mythological hybrid of serpent, lion and bird. The shape of Hydra resembles a twisting snake, and features as such in some Greek myths. One myth associates it with a water snake that a crow served Apollo in a cup when it was sent to fetch water; Apollo saw through the fraud, and angrily cast the crow, cup, and snake, into the sky. It is also associated with the monster Hydra, with its many heads, killed by Hercules, represented in another constellation. According