How do I set my safari home page back to the default screen?

I changed my homepage to Google accidentally, and I want to change it back to the default safari homepage, but I can't figure out how. Is their a link to the homepage? Is there some way I can change it in my MacBook's settings?

When I go to: Safari -> Preferences and see the Homepage it has google, and I don't know how to get it back to the original (as there is no link).

For reference the safari homepage I'm talking about is the homepage that comes up once you click on safari. It has all of your bookmarks and top websites. This is the homepage I want to get back to but I don't know how.