It's the obscure that beckons us.
According to lore, the chasm that created El Portal del Infierno in rural Honduras opened up at once—seemingly in an act of defiance of the nearby priest, who was in the act of blessing the ground for a good harvest. Geothermal vents boil the adjacent river, and steam constantly pours out from both sides of the cave. To the superstitious, the landscape is terrifying, a harbinger of doom brought about by the dark forces obscured by the vapor.
The cave is too unreal to leave alone, though—places like this summon the splinters of intrepidness in all of us. We couldn't help but to explore a little, and wonder at all of it.