Antarctica

Region · Earth · position approximate (fictional or vague in the sources)

Cinematic

2018 Wong and Strange face Ebony Maw and Cull Obsidian in New York; Wong sends Obsidian to Antarctica, stays to guard the Sanctum, and survives the Snap. (Wong, permalink)
2018 Wong sent Obsidian through a portal to Antarctica and closed it, severing his forearm; a prosthetic was fitted afterward. (Cull Obsidian, permalink)

Silver Following a report of a savage man in Antarctica, the X-Men discover the Savage Land and ally with Ka-Zar. (Iceman, permalink)
Silver The X-Men follow a report of a wild man in Antarctica and find the Savage Land. (Angel (Warren Worthington III), permalink)
Silver Summoned to Earth with Ymir by the Spell of Fire and Ice, he rampages in Antarctica until Doctor Strange makes him and Ymir cancel each other out. (Surtur, permalink)
Modern Left in Antarctica, he reaches the Savage Land and strikes a bargain with the New Sun to get home. (Gambit (Remy LeBeau), permalink)
Secret Wars Kate and Clint Barton raid a Hydra base in Antarctica and rescue the children of Project Communion. (Kate Bishop, permalink)
Fresh Start In Antarctica Rogue kills him after the Human Torch's apparent death, but he revives and the Black Order flees to Angargal. (Corvus Glaive, permalink)
Fresh Start Frees the Red Guardian from a prison in Antarctica and sets out as the White Widow. (Yelena Belova, permalink)
Fresh Start Nimrod vaporizes Bobby's body at the third Hellfire Gala, though his consciousness survives in the water cycle and he later rebuilds an ice body in Antarctica. (Iceman, permalink)