So there we were, watching some real old-school super-hero antics, when in episode 12A: The Wings of F.E.A.R. (first aired November 25, 1967), the enemy base ends up being "Death's Head Peak" high in the Andes:
|Death's Head Peak|
|Cross-section of the F.E.A.R. lair in Death's Head Peak|
|Sample cross-section of levels in Holmes|
But... did this brief scene perhaps help influence the development of the Great Stone Skull Dungeon in Holmes? Holmes would have been 37 when this show first premiered, so it is unlikely he was watching Saturday-morning cartoons at the time. Perhaps he saw it when his son, Chris, was watching? Inquiring minds want to know...