The origins of the Avengers Mountain date back four billion years, when the Celestial known as the Progenitor came to Earth to die after being infected by the Horde. His corpse laid unmoved within the Arctic Circle, and its resting place became the bottom of the Arctic Ocean at the North Pole.
Following the defeat of the Final Host of Dark Celestials at the hands of the Avengers, the resurrected First Celestial Host brought forth the Progenitor from its watery grave and bestowed it upon the Avengers as a gift to serve as their new headquarters and a reminder of the wonders of life on Earth.
The Avengers Mountain comes equipped with living headquarters for each member of the team, a gym, a laboratory, and docks for ships. Every floor of the building is connected through a sophisticated elevator called the Spinal Lift. The Avengers managed to partially reanimate the Progenitor's circulatory system and use the cosmic energy from its blood cells to turn one of the ventricles of its heart into a teleportation hub with global reach called the Circulator. The remains of the Celestial's cerebrum were retrofitted into a server room called the Brain Room, which houses the most powerful computer terminal in the galaxy with the potential to decrypt countless data stored within the brain tissue. Each finger of the Progenitor's right hand was turned into a personalized hangar and the intestinal tract remodeled into a detention facility. A section of the Avengers Mountain houses an armory containing copies of Iron Man Armor, Captain America's Shields, the Wakanda Hulkbuster, and weapons of different origins. The right calf of the Progenitor was retrofitted into the Femoral Artery Jogging Track, its left bicep into the Avengers Strength and Conditioning Center, the right lung into the Library of Intergalactic Law, its "mustache" mezzanine into Tony Stark's locker room, and its left fist into the Automated Mandroid Combat Range. A ground-level water passage serves as the entrance to the right foot's sea hangar. The Progenitor's appendix was forested into a garden called the Eden Room. At the crown level of the mountain is King T'Challa's penthouse. Within one of the Progenitor's eyes is Tony Stark's room.
- 77 appearance(s) of Avengers Mountain
- 4 minor appearance(s) of Avengers Mountain
- 11 mention(s) of Avengers Mountain
- 34 image(s) of Avengers Mountain