Saxum Magnus

Ancient fortress of the Titan Conclave and heart of the Titan empire at the start of the Second Titan-Wyrm War. It occupies most of the mountain of Skypiercer Peak. At the current time, it's mostly inaccessible--only a small part of the base level is accessible via the great doors in the city of Kozhuyn, but some of the outbuildings form the homes of the ruling giants of the Tuura Adam in the capital.

It was the site where Isskap betrayed the Conclave as the Orb of All Might shattered. It was the site where, before that, Perkunos and Tatsuryuu warned the Conclave of the hubris of their plan and the instability of the Orb. It was sealed off for many millennia until Perkunos (newly awoken after the Conclave's reprisal) opened the door.