Google can show you everywhere you've been on a map that's surprisingly detailed (GOOG, GOOGL)

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Trying to remember were you've been? Google can help.

If you opt into being tracked, Google can record where you've been through Google Maps and your Android phone. Everything is logged in an interactive map called your Timeline that's accessible through your Google account.

Your Timeline can be useful if you like to look back at where you've been. If you also use Google Photos, the photos you take on your phone will be shown in your Timeline alongside where and when they were taken.

Here's everything you need to know about using your Google Timeline:

To access your Timeline, you have to turn on Location History. It can be enabled or disabled in your Google Settings on phones running Android 2.3 or higher. When you first set up your Android phone, Google will likely ask you to turn Location History on (it's not turned on by default).

Google tracks your location through Google Maps, which also works on the iPhone and the web. You can see your Timeline from your settings in the Google Maps app on Android.

Finding your Timeline through Google Maps on the iPhone is a little more complicated. We recommend just going directly to Google's website from an iPhone or desktop computer.

To see your Timeline from the web, go to Google.com/maps/timeline.