That's kind of the point! It's supposed to feel empty, because kid's shows like Telletubbies and Yo Gabba Gabba tend to be totally vapid. They have one object in the center of frame like a giant flower or something, so that kids solely focus on that thing and there's almost no opportunity for them to be distracted.
Similarly, we wanted the world to feel varied, so we included a bunch of different areas, but it was good that stuff didn't necessarily make sense. This kind of TV show really doesn't make sense!