"Monsters Inc." bedroom doors, and an underground bunker were more suggested explanations, some in jest others not.

A Reddit user found a 'mysterious doorway' in the middle of a mountainside in Antarctica, sparking a social media frenzy.

An eagle-eyed Reddit user found a peculiar ‘doorway’ in the snowy continent Antarctica, just southeast of the Japanese-run Showa Station. The new ‘find’ went viral and piqued users’ curiosity. From being ‘Bigfoot’s vacation home’ to a portal to a ‘secret’ Nazi base,

The anomaly was spotted using Google Maps in the region of Queen Maud Land, with theories ranging from "Bigfoot's house" to a clandestine Antarctic base

The bizarre anomaly was spotted using Google Maps in the region of Queen Maud Land, with theories ranging from "Bigfoot's house" to a clandestine Antarctic base