Search ads will only be displayed in the top 4 spots and the bottom 3 spots of the Google Search results, Google properties such as Google Play, Google Shopping and Google Maps, as well as some Google Search partners' websites. You can see Display ads on websites that are included within Google's Display Network (GDN), which covers 90% of all websites globally.
Example of the top Google Search results:
Example Display Ads within the Google Display Network:
