Google has been experimenting with carousels for local results for a couple of months now. First they did it with restaurants, and now they are showing these results for the query “things to do in {city}” searches.
Unlike most things related to Google’s local search product, this could be a great boon to businesses. Moving local content higher on the page seems like it would be a huge boon for local business. Not only that, but the black background and images make the display visually striking and the first thing you notice on a page. This display method is also ideal for mobile devices like phones and tablets, since the carousel is just begging to be swiped to move through the list.