An Images Box features on some search engine results pages (SERPs) to display a number of images that search engine bots believe are relevant to the search term inputted by users.
An Images Box is not displayed on every SERP. Google’s algorithm determines when it may be of benefit to the user to view a carousel of images that relate to their search, and when the search is not looking for visual media.
An example of a search that would reveal an Images Box is the search for “Big Ben”, which will display a handful of images of the building at the top of the resulting SERP.