Below is how I would spend a day in Ancona.
Click on the Google Maps link under the map below and add your hostel/hotel as the final destination to help you orient yourself.
This information is correct at the time of writing (February 2013).
If you have a suggestion on what else to do, a place to stay or somewhere nice to eat, please leave a comment!
Click on the link to view this itinerary in Google Maps: http://goo.gl/maps/ivlNH
Cricket's Aunty 