A large cave buried in the mountains of Antarctica. Is it an entrance to an underground alien base?
The top of the cave does not look natural and resembles some kind of metal structure.
The second part of the video looks at a formation of strange structures buried in the snow.
A look back at the timeline seems to indicate that it’s some type of construction project.
Cave entrance: 66°36’13.64″S 99°43’12.44″E
Construction site: 75° 0’23.18″S 0° 4’28.34″E