The side street they're in opens to an enormous central "street" that runs the length of the settlement. The metal arches that were presumably once part of a ship that was salvaged for parts meet in the middle, high above their heads, and the occasional massive windmills are spread along this open area. The buildings themselves are arranged close to where the arches meet the dirt, and it's obvious that they were also built out of salvaged metal from the ship, mismatched iron sheets and pipes meeting at the corners to make walls and doors and ladders.
One thing the buildings have in common, though, are these banners made of some kind of thick fabric that are usually hanging next to the doors and windows. Most of them have frayed to almost-nothing over the years, but a handful are intact enough that they can puzzle together their overall shape and design: a long brown-red rectangle with pairs of straight yellow-gold lines running along the edges, a thick red circle in the center surrounded by a thinner one framing a simplified picture of an eye, and straight lines coming from the circle in a design that's reminiscent of drawings of a sun, three pointing up, three down, one to the left, and one to the right.
At least one of the people in their little entourage will be familiar with this symbol.