Hercules final labor was to capture Cerberus, the three headed dog that guarded the underworld. Hercules got permission to take Cerberus from Hades, but Hades told him he could only have him if Hercules subdued him without using any weapons.
Perseus With the Head of Medusa by Zinvolle - by Benvenuto Cellini. Photo taken in Florence, Italy. Another statue of Medusa vs Perseus myth. This statue depicts when Perseus beheaded medusa as told in the Ovid.