Nginx – Autoindex Doesn’t Work

I'm trying to share some of my personal media on my website, but I get a 403 Forbidden error when I try to head to it (www.example.com/media). However, when I provide the full path to a file e.g www.example.com/media/2001/golden_retriever.jpg I get to see the actual picture.

I've enabled autoindex on; in /etc/nginx/sites-available/example.com like so:

location /media {
    allow all;
    autoindex on;
    }

After I restart with service nginx restart, I get the same error. I've tried putting autoindex on; in location / { } and inside the actual server { } block with no avail. Basically, nothing happens when I restart the nginx server after changes.

Whole sites-available config:

server {
        listen   80; ## listen for ipv4; this line is default and implied
        #listen   [::]:80 default ipv6only=on; ## listen for ipv6

        root /usr/share/nginx/www/example;
        index index.php index.html index.htm;

        # Make site accessible from http://localhost/
        server_name example.com www.example.com;

        location / {
                # First attempt to serve request as file, then
                # as directory, then fall back to index.html
                try_files $uri $uri/ /index.html;
                # Uncomment to enable naxsi on this location
                # include /etc/nginx/naxsi.rules
        }

        location /doc/ {
                alias /usr/share/doc/;
                autoindex on;
                allow 127.0.0.1;
                deny all;
        }

        location /media {
                allow all;
                autoindex on;
        }

        # Only for nginx-naxsi : process denied requests
        #location /RequestDenied {
                # For example, return an error code
                #return 418;
        #}

        #error_page 404 /404.html;

        # redirect server error pages to the static page /50x.html
        #
        #error_page 500 502 503 504 /50x.html;
        #location = /50x.html {
        #       root /usr/share/nginx/www;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000

        location ~ \.php$ {
                fastcgi_split_path_info ^(.+\.php)(/.+)$;
                # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini

                # With php5-cgi alone:
                #fastcgi_pass unix:/var/run/php5-fpm.sock;
                # With php5-fpm:
                fastcgi_pass unix:/var/run/php5-fpm.sock;
                fastcgi_index index.php;
                include fastcgi_params;
        }

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #       deny all;
        #}
}

Note that this config has a symlink towards sites-enabled with the exact same name.