The link cannot be found that easily, but it is there. See the direct deletion link below. Be aware not to login for 2 weeks or use facebook in any other way, or your account will be activated again, instead of deleted.
If deletion is too much for you, try deactivation first. The link is: http://www.facebook.com/deactivate.php
For more information, also read https://www.facebook.com/help/359046244166395/
As of August 2012, photos are now completely deleted, due to many complaints that they kept being accessible.
Enlace de la terminación directa: https://www.facebook.com/help/delete_account
Publicly visible text/images often aren't properly deleted even when you succeed in deleting an account. Try editing or deleting them manually before deleting the account itself. If you're unsure what happens to your tracks you can always contact Facebook and ask personally. By the way, deletion requests don't necessarily mean your data will actually be deleted (e.g. due to legal obligations).
Si no puede encontrar ninguna información de contacto y todavía desea hacer algo (por ejemplo, una pregunta acerca de lo que se elimina, sobre la retención de datos, etc.,), usted puede contactar a los propietarios de dominio utilizando esta información.