diff --git a/requirements.txt b/requirements.txt
index ca7213b..f952ae2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,6 +18,8 @@ Pillow==9.2.0
 pluggy==1.0.0
 py==1.11.0
 pycparser==2.21
+Pygments==2.13.0
+pymdown-extensions==9.5
 pyparsing==3.0.9
 pypugjs==5.9.11
 pytest==7.1.2
diff --git a/tests/snapshots/goodbye-cruel-world.snapshot.html b/tests/snapshots/goodbye-cruel-world.snapshot.html
index fad6242..309dd74 100644
--- a/tests/snapshots/goodbye-cruel-world.snapshot.html
+++ b/tests/snapshots/goodbye-cruel-world.snapshot.html
@@ -593,7 +593,8 @@ <h2 id="heroic-engineering">
     </del>
     stakeholders.
    </p>
-   <pre><code>Hello Mr. Fancy Manager,
+   <div class="highlight">
+    <pre><span></span><code>Hello Mr. Fancy Manager,
 
     I am pleased to supply you with features maintained in the new version of the site.
 
@@ -603,6 +604,7 @@ <h2 id="heroic-engineering">
 
 The engineer
 </code></pre>
+   </div>
    <p>
     The engineer's written proof reassured the
     <del>
diff --git a/tests/snapshots/hello-world.snapshot.html b/tests/snapshots/hello-world.snapshot.html
index a209b1a..ffd21e2 100644
--- a/tests/snapshots/hello-world.snapshot.html
+++ b/tests/snapshots/hello-world.snapshot.html
@@ -88,8 +88,23 @@ <h2 id="first-program">
     </code>
     :
    </p>
-   <pre><code class="language-python">print('Hello World!')
+   <div class="codehilite highlight">
+    <table class="highlighttable">
+     <tr>
+      <td class="linenos">
+       <div class="linenodiv">
+        <pre><span></span><span class="normal">1</span></pre>
+       </div>
+      </td>
+      <td class="code">
+       <div>
+        <pre><span></span><code><span class="nb">print</span><span class="p">(</span><span class="s1">'Hello World!'</span><span class="p">)</span>
 </code></pre>
+       </div>
+      </td>
+     </tr>
+    </table>
+   </div>
    <p>
     Save your work, and close the text editor. Open up a terminal application like Powershell on Windows or bash on Ubuntu. If you're on Windows, it is as easy as hitting your Windows Key and searching for
     <code>
diff --git a/website/__init__.py b/website/__init__.py
index 231d344..38c316a 100644
--- a/website/__init__.py
+++ b/website/__init__.py
@@ -26,8 +26,7 @@
 import markdown
 from flask_talisman import Talisman
 
-from website.repositories import (Repository, blog_repositories,
-                                  image_repositories)
+from website.repositories import blog_repositories, image_repositories
 
 app = flask.Flask(__name__)
 
@@ -52,6 +51,7 @@
 
 blog_repo = blog_repositories.PostRepository('blog')
 image_repo = image_repositories.ImageRepository('images')
+icon_repo = image_repositories.ImageRepository('static/icons')
 
 @app.route('/')
 def index() -> str:
@@ -152,17 +152,16 @@ def article(year: int, month: int, day: int, description: str) -> str:
     """    
     try:
         post = blog_repo.get(f"{year}/{month}/{day}/{description}")
-    except Repository.NotFound:
+    except Exception:
         flask.abort(404)
 
     return flask.render_template(
         'article.pug',
         title=post.title,
-        # Day Month Year
         date=post.date.strftime('%d %B %Y'),
         content=markdown.markdown(
             post.content,
-            extensions=['fenced_code', 'toc', 'tables'],
+            extensions=['pymdownx.superfences', 'toc', 'tables', 'codehilite'],
         )
     )
 
@@ -204,18 +203,25 @@ def sitemap() -> str:
     Returns:
         str: The rendered template.
     """    
-    sorted_items = sorted(
+    sorted_articles = sorted(
         blog_repo.get_all(),
         key=lambda post: post.date,
         reverse=True,
     )
+    sorted_images = sorted(
+        image_repo.get_all(),
+        key=lambda image: image.created,
+        reverse=True,
+    )
     response = flask.make_response(
         flask.render_template(
             'sitemap.xml',
-            items=sorted_items,
+            articles=sorted_articles,
+            images=sorted_images,
         )
     )
     response.mimetype = 'application/xml'
+
     return response
 
 
@@ -228,17 +234,17 @@ def favicon() -> flask.Response:
     Returns:
         flask.Response: The image response.
     """
-    directory = os.path.join(
-        app.root_path,
-        'static',
-        'icons',
-    )
-    images = os.listdir(directory)
+    images = icon_repo.get_all()
     image = random.choice(images)
 
-    return flask.send_from_directory(
-        directory,
-        image,
+    mimetype = 'image/jpeg' if image.extension == 'jpg' else 'image/png'
+    mimetype = 'favicon' if image.extension == 'ico' else mimetype
+    img_io = io.BytesIO(image.content)
+    img_io.seek(0)
+
+    return flask.send_file(
+        img_io,
+        mimetype=mimetype,
     )
 
 with open('website/static/faq.md', 'r') as file:
diff --git a/website/blog/2020/hello_world.md b/website/blog/2020/hello_world.md
index 0466f3f..1185152 100644
--- a/website/blog/2020/hello_world.md
+++ b/website/blog/2020/hello_world.md
@@ -16,7 +16,7 @@ This example will be using the programming language [Python](https://www.python.
 
 Writing and executing a simple "Hello World" program is fairly simple. Most languages require you to tell the computer using a specific command that you would like to output some characters, in this case, "Hello World," to the screen. The ```print``` command allows us to output some text to the screen. Please note that we don't always output the screen (the terminal), and in the past, we've output to a physical printer or similar device. Using your preferred text editor, write the following in a new file named ```hello_world.py```:
 
-```python
+```{.python .codehilite linenums="1"}
 print('Hello World!')
 ```
 
diff --git a/website/blog/2022/missed-article-titles.md b/website/blog/2022/missed-article-titles.md
index cbedd8c..a7c9609 100644
--- a/website/blog/2022/missed-article-titles.md
+++ b/website/blog/2022/missed-article-titles.md
@@ -20,15 +20,14 @@ Blocks, such as the title, can be overridden in the layout. The `block` tag acce
 
 The default looks like this:
 
-```pugjs
+```{.pugjs .codehilite linenums="1"}
 block title
     title Engineer, Researcher, Entrepreneur - Johnathan Irvin
 ```
 
 The layout contains the default title. I overrode the block in the `article.pug` file.
 
-```
-pugjs
+```{.pugjs .codehilite linenums="1"}
 block title
     title {{ title }} - Johnathan Irvin
 ```
diff --git a/website/repositories/image_repositories.py b/website/repositories/image_repositories.py
index 5c3511f..7486d7f 100644
--- a/website/repositories/image_repositories.py
+++ b/website/repositories/image_repositories.py
@@ -55,9 +55,6 @@ def _load_images(self, directory: str) -> dict[str, Image]:
         directory = os.path.join('website', directory)
         for _, _, files in os.walk(directory):
             for file in files:
-                if not file.endswith('.jpg') and not file.endswith('.png'):
-                    continue
-                
                 with open(os.path.join(directory, file), 'rb') as f:
                     content = f.read()
                     created = os.path.getctime(os.path.join(directory, file))
diff --git a/website/static/css/hilite.css b/website/static/css/hilite.css
new file mode 100644
index 0000000..9a05b3a
--- /dev/null
+++ b/website/static/css/hilite.css
@@ -0,0 +1,74 @@
+pre { line-height: 125%; }
+td.linenos .normal { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
+span.linenos { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
+td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
+span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
+.codehilite .hll { background-color: #ffffcc }
+.codehilite { background: #f8f8f8; }
+.codehilite .c { color: #3D7B7B; font-style: italic } /* Comment */
+.codehilite .err { border: 1px solid #FF0000 } /* Error */
+.codehilite .k { color: #008000; font-weight: bold } /* Keyword */
+.codehilite .o { color: #666666 } /* Operator */
+.codehilite .ch { color: #3D7B7B; font-style: italic } /* Comment.Hashbang */
+.codehilite .cm { color: #3D7B7B; font-style: italic } /* Comment.Multiline */
+.codehilite .cp { color: #9C6500 } /* Comment.Preproc */
+.codehilite .cpf { color: #3D7B7B; font-style: italic } /* Comment.PreprocFile */
+.codehilite .c1 { color: #3D7B7B; font-style: italic } /* Comment.Single */
+.codehilite .cs { color: #3D7B7B; font-style: italic } /* Comment.Special */
+.codehilite .gd { color: #A00000 } /* Generic.Deleted */
+.codehilite .ge { font-style: italic } /* Generic.Emph */
+.codehilite .gr { color: #E40000 } /* Generic.Error */
+.codehilite .gh { color: #000080; font-weight: bold } /* Generic.Heading */
+.codehilite .gi { color: #008400 } /* Generic.Inserted */
+.codehilite .go { color: #717171 } /* Generic.Output */
+.codehilite .gp { color: #000080; font-weight: bold } /* Generic.Prompt */
+.codehilite .gs { font-weight: bold } /* Generic.Strong */
+.codehilite .gu { color: #800080; font-weight: bold } /* Generic.Subheading */
+.codehilite .gt { color: #0044DD } /* Generic.Traceback */
+.codehilite .kc { color: #008000; font-weight: bold } /* Keyword.Constant */
+.codehilite .kd { color: #008000; font-weight: bold } /* Keyword.Declaration */
+.codehilite .kn { color: #008000; font-weight: bold } /* Keyword.Namespace */
+.codehilite .kp { color: #008000 } /* Keyword.Pseudo */
+.codehilite .kr { color: #008000; font-weight: bold } /* Keyword.Reserved */
+.codehilite .kt { color: #B00040 } /* Keyword.Type */
+.codehilite .m { color: #666666 } /* Literal.Number */
+.codehilite .s { color: #BA2121 } /* Literal.String */
+.codehilite .na { color: #687822 } /* Name.Attribute */
+.codehilite .nb { color: #008000 } /* Name.Builtin */
+.codehilite .nc { color: #0000FF; font-weight: bold } /* Name.Class */
+.codehilite .no { color: #880000 } /* Name.Constant */
+.codehilite .nd { color: #AA22FF } /* Name.Decorator */
+.codehilite .ni { color: #717171; font-weight: bold } /* Name.Entity */
+.codehilite .ne { color: #CB3F38; font-weight: bold } /* Name.Exception */
+.codehilite .nf { color: #0000FF } /* Name.Function */
+.codehilite .nl { color: #767600 } /* Name.Label */
+.codehilite .nn { color: #0000FF; font-weight: bold } /* Name.Namespace */
+.codehilite .nt { color: #008000; font-weight: bold } /* Name.Tag */
+.codehilite .nv { color: #19177C } /* Name.Variable */
+.codehilite .ow { color: #AA22FF; font-weight: bold } /* Operator.Word */
+.codehilite .w { color: #bbbbbb } /* Text.Whitespace */
+.codehilite .mb { color: #666666 } /* Literal.Number.Bin */
+.codehilite .mf { color: #666666 } /* Literal.Number.Float */
+.codehilite .mh { color: #666666 } /* Literal.Number.Hex */
+.codehilite .mi { color: #666666 } /* Literal.Number.Integer */
+.codehilite .mo { color: #666666 } /* Literal.Number.Oct */
+.codehilite .sa { color: #BA2121 } /* Literal.String.Affix */
+.codehilite .sb { color: #BA2121 } /* Literal.String.Backtick */
+.codehilite .sc { color: #BA2121 } /* Literal.String.Char */
+.codehilite .dl { color: #BA2121 } /* Literal.String.Delimiter */
+.codehilite .sd { color: #BA2121; font-style: italic } /* Literal.String.Doc */
+.codehilite .s2 { color: #BA2121 } /* Literal.String.Double */
+.codehilite .se { color: #AA5D1F; font-weight: bold } /* Literal.String.Escape */
+.codehilite .sh { color: #BA2121 } /* Literal.String.Heredoc */
+.codehilite .si { color: #A45A77; font-weight: bold } /* Literal.String.Interpol */
+.codehilite .sx { color: #008000 } /* Literal.String.Other */
+.codehilite .sr { color: #A45A77 } /* Literal.String.Regex */
+.codehilite .s1 { color: #BA2121 } /* Literal.String.Single */
+.codehilite .ss { color: #19177C } /* Literal.String.Symbol */
+.codehilite .bp { color: #008000 } /* Name.Builtin.Pseudo */
+.codehilite .fm { color: #0000FF } /* Name.Function.Magic */
+.codehilite .vc { color: #19177C } /* Name.Variable.Class */
+.codehilite .vg { color: #19177C } /* Name.Variable.Global */
+.codehilite .vi { color: #19177C } /* Name.Variable.Instance */
+.codehilite .vm { color: #19177C } /* Name.Variable.Magic */
+.codehilite .il { color: #666666 } /* Literal.Number.Integer.Long */
diff --git a/website/templates/article.pug b/website/templates/article.pug
index d862406..6e22abb 100644
--- a/website/templates/article.pug
+++ b/website/templates/article.pug
@@ -5,6 +5,7 @@ block title
 
 block styles
     link(href="{{ url_for('static', filename='css/article.css') }}", rel="stylesheet")
+    link(href="{{ url_for('static', filename='css/hilite.css') }}", rel="stylesheet")
 
 block content
     h1.post-title.h1 {{title}}
diff --git a/website/templates/sitemap.xml b/website/templates/sitemap.xml
index 14cb467..df42c9d 100644
--- a/website/templates/sitemap.xml
+++ b/website/templates/sitemap.xml
@@ -1,7 +1,30 @@
 <urlset>
-    {% for item in items %}
-        <url>
-            <loc>{{ 'articles/' + item.get_identifier() }}</loc>
-        </url>
+    <url>
+        <loc>index</loc>
+    </url>
+    <url>
+        <loc>faq</loc>
+    </url>
+    {% for item in articles %}
+    <url>
+        <loc>{{ 'articles/' + item.get_identifier() }}</loc>
+    </url>
     {% endfor %}
+    {% for item in images %}
+    <url>
+        <loc>{{ 'images/' + item.get_identifier() }}</loc>
+    </url>
+    <url>
+        <loc>{{ 'images/' + item.get_identifier() + '/thumbnail'}}</loc>
+    </url>
+    {% endfor %}
+    <url>
+        <loc>favicon</loc>
+    </url>
+    <url>
+        <loc>rss</loc>
+    </url>
+    <url>
+        <loc>sitemap</loc>
+    </url>
 </urlset>
\ No newline at end of file