A common form of meta-human ability found in legends and folklore is the practice of magic. The legitimacy of tales of magic are oft challenged by science, but there still exist many disciplines claiming to know arcane secrets across the world.
In addition to more arcane forms of magic, there were many temples and cults which practiced magic empowered by the god(s) they worshipped.
Related to theological magic are the beings who might be worshipped by those temples: gods (and their divine offspring). Legends say that these figures walk (or walked) the Earth.