Constant exception.Craft\HttpException.404 in logs My log is getting hammered nonstop by the same error about every second (see image). Any idea what's going on here?

Text is:

Level       error
Category    exception.Craft\HttpException.404
Message     Craft\HttpException in /home/folder/public_html/craft/app/controllers/TemplatesController.php:72
You can try installing the Retour plugin to get a log of all of the 404 errors and their referrers, and potentially handle them via redirects.