You will also find well-like structures dotting the landscape. Hitting the orbs with ranged spells or bow shots will lower the bars, granting access to the interior. Pairs of standing stones with glowing bluish-green balls near the top are located near these buildings.
The entrances to some of these structures are blocked by bars. Some of these are buildings containing a chest, typically guarded by hostile creatures. There are many structures scattered throughout the Soul Cairn. If you look straight up at the sky, you will see what appears to be a giant black hole. Scattered throughout the Soul Cairn are black skeletal trees and bushes (with soul husks being the only plant in the plane that can be harvested), upright black stones similar to very large gravestones, and the bones and skulls of dragons. There are many black structures throughout this plane of Oblivion, including many seen beyond the boundary of the area, which is clearly defined as a shimmering blue magical barrier (see bugs).
The sky within the Soul Cairn ranges in color from blue to black and purple. Once you arrive, you can see the stairs from the portal ascending to a hole in the sky surrounded by darkness. The portal that transported you to the Soul Cairn