This template shows the POTD from Commons. Not to be confused with Wikipedia:Picture of the day.
The data is automatically updated in {{ User:JJMC89 bot/Commons picture of the day}}, which can also be used to create custom layouts.
{{WP:Wikimedia Commons/POTD|thumb=yes|title=yes|float=right}}
- this will show a thumbnailed version, floated right, with the title and captions.