Curved half circle staircase

[chris hickey]

Took me about 3 1/2 hours after not finding anything similar

[Edwin_Blacktallow]

This remains me of the spiral stairs in the abandoned keep dungeons in skyrim, if you are familiar at all. Can hear the rattle of skeleton bones tumbling down the stairs even now.

 

Greatwork, would love to see the rest of the structure too! Must be a grand building.