There's a hidden map in your iPhone of everywhere you've been

Open the Settings app on your iPhone and tap on "Privacy."

Then tap on Location Services.

You'll see the location tracking permissions for every app you have installed.

Scroll down to the very bottom of your list of apps, and you'll see System Services.

Now things start to get interesting.

Scroll to the bottom and you'll see Frequent Locations, which is enabled alongside the rest of the iPhone's Location Services.

Under History, you'll see your iPhone's GPS location history. If you've traveled between multiple cities, the location logs will be broken up into different lists.

Tap on a city's name to see a map view of where your iPhone has been. If you have certain locations labeled already, their respective names will be displayed instead of the street name.

Apple calls this log your "frequent" locations, but places you've visited only once are displayed as well.

If you tap on a specific location, you can see the time stamps of when you've arrived to and left that location.

Apple says that this location data is "kept solely on your device and won't be sent to Apple without your consent. It will be used to provide you with personalized services, such as predictive traffic routing."

Source: Apple

To delete your location history off your device, tap Clear History. You can also turn off the feature by un-checking the toggle next to Frequent Locations.