Sky Fortress Seibal (天空城セイバル, Tenkū-jō Seibaru) is a location in the Yu-Gi-Oh! 5D's manga, similar to the Divine Temple from the anime.
It appears to be a kind of castle owned by the Skeleton Knight, and it is the place where the Ultimate God is sleeping.
- ↑ Yu-Gi-Oh! 5D's Ride 34: "Resolve...!!"