Lethe, Mnemosyne, and Styx are all rivers found in this type of place.
Naraka is this type of location in which Yama lives. The Hero Twins fought a ballgame in Xibalba, which is this type of location. Lethe, Mnemosyne, and Styx are all rivers found in this type of place. Proserpine was restricted to this kind of area after eating pomegranate seeds. In one mythos, this kind of place is called Niflheim and is ruled over by a daughter of Loki. This location is ruled over by Osiris in Egyptian mythology and Hel in Norse mythology. For 10 points, name this type of place ruled by Hades in Greek mythology.
Naraka is this type of location in which Yama lives. The Hero Twins fought a ballgame in Xibalba, which is this type of location.
{Underworld} [accept equivalents like {otherworld} or {realm of the dead}]