diff --git a/app/WikiSpot/app/src/main/java/com/example/wikispot/activities/MainActivity.kt b/app/WikiSpot/app/src/main/java/com/example/wikispot/activities/MainActivity.kt
index 1a62fad..5673be7 100644
--- a/app/WikiSpot/app/src/main/java/com/example/wikispot/activities/MainActivity.kt
+++ b/app/WikiSpot/app/src/main/java/com/example/wikispot/activities/MainActivity.kt
@@ -2,23 +2,26 @@ package com.example.wikispot.activities
 
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
-import android.view.Window
-import android.view.WindowManager
+import androidx.appcompat.app.AlertDialog
 import androidx.navigation.findNavController
 import androidx.navigation.ui.setupWithNavController
 import com.example.wikispot.R
-import com.example.wikispot.databinding.ActivityMainBinding
 import com.google.android.material.bottomnavigation.BottomNavigationView
 
 class MainActivity : AppCompatActivity() {
 
-    //private lateinit var binding: ActivityMainBinding
+    override fun onBackPressed() {
+        val builder = AlertDialog.Builder(this)
+        builder.setTitle("Confirm")
+        builder.setMessage("Do you want to quit the application?")
+        builder.setPositiveButton("Yes") {_, _ -> finish()}
+        builder.setNegativeButton("No") {_, _ -> }
+        builder.show()
+    }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
-        //binding = ActivityMainBinding.inflate(layoutInflater)
-        //setContentView(binding.root)
 
         val navController = findNavController(R.id.mainFragmentHost)
         val bottomNavView = findViewById<BottomNavigationView>(R.id.mainBottomNavigationView)
diff --git a/app/WikiSpot/app/src/main/res/navigation/main_activity_navigation.xml b/app/WikiSpot/app/src/main/res/navigation/main_activity_navigation.xml
index 8941056..d2b6544 100644
--- a/app/WikiSpot/app/src/main/res/navigation/main_activity_navigation.xml
+++ b/app/WikiSpot/app/src/main/res/navigation/main_activity_navigation.xml
@@ -3,7 +3,7 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/main_activity_navigation"
-    app:startDestination="@id/chatFragment">
+    app:startDestination="@id/homeFragment">
 
     <fragment
         android:id="@+id/chatFragment"
@@ -14,7 +14,7 @@
         android:id="@+id/exploreFragment"
         android:name="com.example.wikispot.fragments.exploreFragment"
         android:label="fragment_explore"
-        tools:layout="@layout/fragment_explore" >
+        tools:layout="@layout/fragment_explore">
         <action
             android:id="@+id/action_exploreFragment_to_mapFragment"
             app:destination="@id/mapFragment" />
@@ -28,7 +28,11 @@
         android:id="@+id/mapFragment"
         android:name="com.example.wikispot.fragments.mapFragment"
         android:label="fragment_map"
-        tools:layout="@layout/fragment_map" />
+        tools:layout="@layout/fragment_map">
+        <action
+            android:id="@+id/action_mapFragment_to_exploreFragment"
+            app:destination="@id/exploreFragment" />
+    </fragment>
     <fragment
         android:id="@+id/settingsFragment"
         android:name="com.example.wikispot.fragments.settingsFragment"