If I were a natural phenomenon, I would be:
a tsunami

If I were a metal, I would be:
quicksilver

If I were an animal, I would be:
a lion

If I were a colour, I would be:
red

If I were a mythological being, I would be:
Apollo

If I were a famous human being, I would be:
Alexander the Great

If I were a human activity, I would be:
sex

If I were a work of art, I would be:
sculpture

If I were a weapon, I would be:
a spear