An attempt to show all the many confusing pages google has for various account activities. Feel free to fork and add more.
https://www.google.com/settings/accounthistory To the right of each setting is a blue circle or grey circle. (Its supposed to represent a toggle switch) Make them ALL GREY. Each time a window will pop up, hit the 'Pause' on the bottom.
https://history.google.com/history Click the 3 dots, select "Delete Options", click "Advanced", click "Select Date", choose "All Time"
https://www.google.com/maps/timeline Click the Gear, select "Delete all location history"
https://history.google.com/history/youtube/search Click the 3 dots, select "Delete Options", click "Advanced", click "Select Date", choose "All Time"
https://history.google.com/history/youtube/watch Click the 3 dots, select "Delete Options", click "Advanced", click "Select Date", choose "All Time"
https://history.google.com/history/audio Click the 3 dots, select "Delete Options", click "Advanced", click "Select Date", choose "All Time"
https://history.google.com/history/device Click the 3 dots, select "Delete Options", click "Advanced", click "Select Date", choose "All Time"
https://www.google.com/bookmarks Your map pins are also saved here.
https://plus.google.com Click on profile, click on 'about'. Find 'Basic Informationn'. Click Edit. Select 'Decline to State' under gender. Select Jan 7, 1900 as birthday.
https://www.google.com/settings/u/0/ads/authenticated Click the Green circle next to "Ads based on your interest" to Gray
https://www.google.com/settings/u/0/ads/anonymous Click the word OFF next to the Green or Yellow circle next to "Ads based on your interest beyond google"
https://plus.google.com/settings Turn off anything gross sounding. Turn on 'Dont feature my publicly shared photos as backgrounds on google products' ??
https://plus.google.com/apps/activities Delete whatever you need to