Hydra (mythology)

English: Hydra was a creature from Greek mythology.

• 
  Antonio del Pollaiolo: Hercules and the Hydra
• 
  Gustave Moreau: Hercules and the Hydra
• 
  Francisco de Zurbarán: Struggle of Hercules with the Hydra of Lerna (1634).
• 
• 
  Fountain of Herkules in Olomouc
• 
  Roman mosaic from Llíria (Spain), 3rd century AD.