Elemental Plane of Water

The city is located in an area where portals to other planes are common and relatively stable. The name comes from the great dome of "unbreakable" glass that keeps the water of the plane out. However, inside the sphere, the city is half full of water so those that need water can live and trade inside the city. There are many openings in the sphere, allowing passage in and out of the city. Because of the portals and the trade that make the city so successful, the City of Glass is known as the Sigil of the Elements or the Sigil of the Inner Planes. The city is roughly split in half between pockets of air and the normal water of the Elemental Plane of Water. This divide is about halfway through the city and in places even divides houses in half. The locals agree that "down" means towards the side of the city in the water. The base of the city is made out of eternal ice. The air of the city is an air bubble trapped between the glass dome and the ice sheet under the dome.