Bulikov

"'City of Walls. Most Holy Mount. Seat of the World. The city of stairs... The Divine City'[1]"Once a Divine seat of power, created by the builder god Taalhavras. Remembered as the meeting place of the Divinities before The Blink.

Whom also created walls to protect the city as one of his Miracles. This miracle allows sun light through the walls, but nothing can break them.