A short list:
- Paleontology - the most primitive, limbic region of our brain, revealed through giant lizards and fish that we imaging to be the gluttons of all basic desires (reproduction, feeding, etc.). Paleontologists excavate our primitive roots and ancestry, explain them away, much as psychology helps us to discern our most primal motivations.
- Spelunking: The exploration of hidden regions beneath the earth (conscious.). Self-explanatory, psychology.
- Archaeology: The evolution of mind, explored through the evolution of societies, cultures, countries world-wide.
All of these, to one degree or another, are excavating and mining as much within the unconscious - exploring desire, fear, the primal emotions as well as the beginnings of the more refined emotions - as they are generally increasing the weal of human consciousness.