Make a website to display real google banner ads on unverified website

I want to display google banner ads on my website, but without verifying my website (verification will not work as my website doesn't get any traffic). I just want to have my website show real google banner ads for people who will be visiting it, so it would show different banner ads each time we reload the page and if we visit a page from a different country, then it would show country-specific banner ads.