76° 52' 28" S 149° 56' 28" W
Pay attention to the bad Photoshop smudge job and the details in the shadows. Size is slightly over 1 mile, so REALLY big structure.
https://www.google.com/maps/place/76%C2%B052'28.0%22S+149%C2%B056'28.0%22W/@-76.8766086,-149.9786086,6758m/data=!3m1!1e3!4m5!3m4!1s0x0:0x0!8m2!3d-76.8744444!4d-149.9411111?hl=en
Not sure if this URL will work, but it's the link to the Antarctica structure somebody tried to Photoshop out…interesting times.
Some screengrabs of the 'castle shadow' in Antarctica the guy in this video is outing. Get it before Google 'fixes' it..
76° 52' 28" S 149° 56' 28" W
Link back to ^^^