Breadcrumbs are a design element displays the hierarchy of a set of pages on a website. It also helps visitors show where they are and retraces their steps if they want to go back to a previous page. The are on all templates except the Landing Page template.
By default, the interior pages of your site will have Home > Current Page as the breadcrumb.
If your page is in a certain level of hierarchy, you must set a Parent Page in the Page Attributes.