Google is testing showing images in the local pack that you can scroll through. It is an image carousel in the local pack itself.
Here are screen shots from Valentin Pletzer that he shared with me on Twitter:
Here is what the normal local pack looks like, the one without scrollable images:
He shared more examples on Twitter:
and some more. Looks like it triggers everywhere where people might want to look at pictures pic.twitter.com/Fc63fL1HGC
— Valentin Pletzer (@VorticonCmdr) November 2, 2019
Not sure I like how it looks but what do I know?