Out of curiosity, I decided to visit the beta grid. It turns out that Caledon is a mere two sims: Caledon Prime, and Steam Sky City. Below is a picture of the edge of Caledon, looking southeast into...nothing.
Instead, I should have been looking into Caledon II, as in the photo below:
Similarly, looking northwest there is...nothing.
In the "full" Caledon, I would have been looking into Port Caledon, as in the photo below:
Steam Sky City and Aether Isle are there, but the lava monster is still consuming the older version of the Falcon Tower!
Here is a photo from the same location, on the production grid, with the new Falcon Tower:
No real point to this post; I was just curious about the beta grid.