Angel Falls
Angel Falls was an American coastal city in Reality Z-25 31-H. It was protected by a superhero team known as the Guardians, and was also home to the lawful vampire nightclub known as the Bleeding Rose. (COMIC: Kate Five vs Symbiote - Chapter 2)
One day, an “alien orphan” was found there. The Guardians took custody of her and, seeking advice from other people used to unusual phenomena, eventually agreed to let Sir James Carey take her back to Cardiff and act as her guardian as she grew up to become Nexus Girl. (PROSE: Kate Five Extended Bio)
Six months after she first became possessed by the Symbiote, Kate Five felt herself drawn to Angel Falls. This would prove an unfelicitous hunch as she was drawn into battle by Guardian Ms. Blitzen, who managed to separate part of the Symbiote from her, although she prevailed against her in the end. (COMIC: Kate Five vs Symbiote - Chapter 2)
Behind the scenes
Though not open-source, Angel Falls was a shared setting participated in by many DeviantArt artists as part of the Angel-FallsDA group.