diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
index 90c84e8..e5d68bf 100644
--- a/.idea/inspectionProfiles/Project_Default.xml
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -58,7 +58,7 @@
         </list>
       </option>
     </inspection_tool>
-    <inspection_tool class="RegExpAnonymousGroup" enabled="true" level="WEAK WARNING" enabled_by_default="true" />
+    <inspection_tool class="RegExpAnonymousGroup" enabled="false" level="WEAK WARNING" enabled_by_default="false" />
     <inspection_tool class="RegExpEscapedMetaCharacter" enabled="true" level="WEAK WARNING" enabled_by_default="true" />
     <inspection_tool class="RegExpOctalEscape" enabled="true" level="WEAK WARNING" enabled_by_default="true" />
     <inspection_tool class="RegExpRedundantEscape" enabled="true" level="WEAK WARNING" enabled_by_default="true" />
diff --git a/nest_frontend/index.js b/nest_frontend/index.js
index c9b7cd1..b931256 100644
--- a/nest_frontend/index.js
+++ b/nest_frontend/index.js
@@ -3,6 +3,7 @@ import ReactDOM from "react-dom"
 import "./index.css"
 import App from "./App"
 import reportWebVitals from "./reportWebVitals"
+import "./prototypes"
 
 
 ReactDOM.render(
diff --git a/nest_frontend/objects/Coordinates.js b/nest_frontend/objects/Coordinates.js
index 9f4868a..10413f2 100644
--- a/nest_frontend/objects/Coordinates.js
+++ b/nest_frontend/objects/Coordinates.js
@@ -14,6 +14,20 @@ export default class Coordinates {
         this.lng = lng
     }
 
+    /**
+     * Create a new {@link Coordinates} from the format used by the backend.
+     *
+     * @param str - The string to create the object from.
+     * @returns {Coordinates}
+     */
+    static fromCrawlerString(str) {
+        const match = /[{]([0-9.]+),([0-9.]+)[}]/.exec(str)
+        if(!match) {
+            throw new Error(`Invalid location string: ${str}`)
+        }
+        return new Coordinates(match[0], match[1])
+    }
+
     /**
      * @returns {string}
      */
@@ -31,7 +45,7 @@ export default class Coordinates {
     }
 
     /**
-     * Transform the object in a Geolib compatible-one.
+     * Transform this object in a Geolib compatible-one.
      */
     toGeolib() {
         return {
@@ -39,4 +53,13 @@ export default class Coordinates {
             longitude: this.lng,
         }
     }
+
+    /**
+     * Transform this object in a 2-ple.
+     *
+     * @returns {[Number, Number]}
+     */
+    toArray() {
+        return [this.lat, this.lng]
+    }
 }
diff --git a/nest_frontend/objects/MapArea.js b/nest_frontend/objects/MapArea.js
index 9bd5b9e..a222742 100644
--- a/nest_frontend/objects/MapArea.js
+++ b/nest_frontend/objects/MapArea.js
@@ -1,4 +1,5 @@
 import {getDistance} from "geolib"
+import osmZoomLevels from "../utils/osmZoomLevels"
 
 
 /**
@@ -17,6 +18,20 @@ export default class MapArea {
         this.center = center
     }
 
+    /**
+     * Create a new {@link MapArea} from the [zoom level of OpenStreetMaps][1], assuming the window is
+     * ~400 pixels large.
+     *
+     * [1]: https://wiki.openstreetmap.org/wiki/Zoom_levels
+     *
+     * @param zoom
+     * @param center
+     * @returns {MapArea}
+     */
+    static fromZoomLevel(zoom, center) {
+        return new MapArea(osmZoomLevels[zoom], center)
+    }
+
     /**
      * @returns {string}
      */
@@ -25,7 +40,7 @@ export default class MapArea {
     }
 
     /**
-     * Render the MapArea as an human-readable string.
+     * Render the {@link MapArea} as an human-readable string.
      *
      * @returns {string}
      */
diff --git a/nest_frontend/utils/convertToLocalISODate.js b/nest_frontend/prototypes/Date.js
similarity index 59%
rename from nest_frontend/utils/convertToLocalISODate.js
rename to nest_frontend/prototypes/Date.js
index 8282621..79e80cf 100644
--- a/nest_frontend/utils/convertToLocalISODate.js
+++ b/nest_frontend/prototypes/Date.js
@@ -1,20 +1,10 @@
-// Wow, JS, davvero?
-// Davvero tutte le date.toISOString() sono considerate UTC?
-// Wow.
-
-/**
- * Convert a {@link Date} object to a timezone aware ISO String, using the user's local timezone.
- *
- * @param date
- * @returns {string}
- */
-export default function convertToLocalISODate(date) {
-    if(date.toString() === "Invalid Date") {
+Date.prototype.toAwareISOString = function() {
+    if(this.toString() === "Invalid Date") {
         throw new Error("Data non valida ricevuta come parametro.")
     }
 
     // Create a timezone naive ISO string
-    const naive = date.toISOString()
+    const naive = this.toISOString()
 
     // Find the local timezone
     const tz = -new Date().getTimezoneOffset()
@@ -29,4 +19,4 @@ export default function convertToLocalISODate(date) {
 
     // Replace the naive part with the aware part
     return naive.replace("Z", `${tz < 0 ? "-" : "+"}${tzHours}${tzMinutes}`)
-}
\ No newline at end of file
+}
diff --git a/nest_frontend/prototypes/index.js b/nest_frontend/prototypes/index.js
new file mode 100644
index 0000000..aff132e
--- /dev/null
+++ b/nest_frontend/prototypes/index.js
@@ -0,0 +1 @@
+import "./Date"
\ No newline at end of file
diff --git a/nest_frontend/utils/location.js b/nest_frontend/utils/location.js
deleted file mode 100644
index 561f3d0..0000000
--- a/nest_frontend/utils/location.js
+++ /dev/null
@@ -1,37 +0,0 @@
-export const locationRegex = /[{](?<lat>[0-9.]+),(?<lng>[0-9.]+)[}]/
-
-
-export class Location {
-    lat
-    lng
-
-    constructor(lat, lng) {
-        this.lat = lat
-        this.lng = lng
-    }
-
-    static fromString(locString) {
-        const match = locationRegex.exec(locString)
-        if(!match) {
-            throw new Error(`Invalid location string: ${locString}`)
-        }
-        const { lat, lng } = match.groups
-        return new Location(lat, lng)
-    }
-
-    static fromTweet(tweet) {
-        if(tweet.location === null) {
-            throw new Error(`Tweet has no location: ${tweet}`)
-        }
-
-        return Location.fromString(tweet.location)
-    }
-
-    toArray() {
-        return [this.lat, this.lng]
-    }
-
-    toString() {
-        return `${this.lat.toFixed(3)} ${this.lng.toFixed(3)}`
-    }
-}