Google has officially announced the launch of the Google Knowledge Carousel for local searches, after reports of the update surfacing over the past couple of days.
The announcement published on Google+ explains that the horizontal Carousel will appear when a user searches for "restaurants, bars or other local places" from their desktop computer; displaying images against a black background which can be selected for more information.
The bar appears above the SERP at the top of the browser window and an arrow on the right of the panel allows them to scroll through more entries. In addition, by zooming on on the Google Knowledge Graph map they can refine the results on the carousel, receiving results for the area selected on the map.
Clicking on a Google Knowledge Graph carousel image will provide the user with more location details, including more photos, an address and an overall review based score for that place.
The Google Knowledge Graph Carousel has rolled out for searches in English in the US, and more languages, and additional features will be added over time.