Coera

After The Apocalypse of the Descent of Heaven, after the angels have left, the skys are no longer full of their palaces, and man is left with dominion of the earth and the new Evangelion, the rich and powerful have obelisks built as their tombs. The scavengers who might find their souls stay close to Coera, where they can hide in shadows and holes from the eye of Patar Ori or the watchers in the night, so the rich build platforms (the obelisks) to keep their souls far from the ground, and mark them so the escorts can find them with ease.

The architecture of Ohida is often built from the pillars of these obelisks.