The Papal Blessing Office is on Via del Pellegrino, inside the Vatican City wall on the right as you enter via the Sant'Anna Gate on Via di Porta Angelica. The Swiss Guards can help with directions. A warning; it can take a week or two to process papal blessings, but the office will arrange for mailing if required (postage additional). Costs vary according to the size and quality of the blessing parchment. You may also call the Office of Papal Charities at +(39) 06.6988.3135 or +(39) 06.6988.3133 for more information on Apostolic Blessings.