Where were you last Sunday afternoon

Opened Google Maps and checked the "my places - visited" feature. It has a list of all my daily travels, in many cases with pictures.  
If you have the feature activated, your mobile phone geotags every photo you take with your mobile. 
Sunday I was near the Mekong river, but I had no idea how close till I saw the map

Your mobile keeps track of all the places it's been, so if you are going someplace you don't want people to know, turn off you mobile, better yet, leave it at home.

สกลนคร Sakon Nakhon