Any games with "endless" world maps?

[HwitVlf]

There were magic levitate scrolls in Morrowind (think they were called scrolls of the Vampire) that gave you massive flying speed for a bit. It was a really cool feeing to go flying over the continent. I was sad when TES abandoned that endless format in Oblivion. I expect that's why they ditched the levitation ability too ‎ 

I looked up Ringworld on Amazon. That seriously sounds like where they got the idea for the ring-worlds in Halo. Neat!