Andy Simpson discovered this interesting Google Maps interface test. A local listing or a local packing carousel is displayed in the footer of the Google Maps view. I don't think I've seen this before, but it's kind of nice.
I can't replicate this, but here's the GIF that he shared on Twitter and the local search forums:
It is an interesting way to keep an eye on local entries after clicking on an entry to expand its local knowledge window.
Forum discussion on Twitter and the local search forums.