Google has dropped support for the location history dashboard. Alex Chitu first covered this explaining that the location history dashboard, that provides summaries of where you’ve been, has been discontinued.
A Google Maps Help thread has Google’s community manager, Abby, explaining that the core location mapping data is still there but the summaries are gone. She wrote:
Alex has screen shots of the old dashbaord but now all you get is the ability to see specific dates or a record of the past 30 days or so.
You can access this at maps.google.com/locationhistory.
Google Now does give you monthly summary snapshots of miles walked and biked.
Forum discussion at Google Maps Help.