The Path Analyzer is an application that enables you to create a map that shows the sequential paths that contacts take as they navigate through your website. You can see the paths that contacts take while interacting with campaigns, and trigger goals and outcomes.

https://doc.sitecore.net/sitecore_experience_platform/analyzing_and_reporting/path_analyzer/path_analyzer

https://www.sitecore.com/company/blog/441/getting-visual-with-sitecore-s-path-analyzer-tool-4143