The following KB articles relate to this topic:
Breadcrumb navigation allows users of your website to keep track of how they landed on a certain page. This is accomplished by providing links to each page that a user clicked before they got to that page. The term "breadcrumbs" comes from the trail of breadcrumbs that Hansel and Gretal left in the iconic tale of the same name.
Within the CMS, breadcrumbs can be turned on or off as desired. This is a page setting, not a content class. Users can change their breadcrumbs setting within the Navigation Settings in the Page Information.
Breadcrumbs have been turned on for every page of this site. They can be viewed at the top of the page in the tan box. The breadcrumbs for this page look like this: HOME / NAVIGATION OPTIONS / BREADCRUMBS NAVIGATION.