Identify who books and supports the extension. Independent arrangements should not be assumed to carry the same transfer service or cancellation terms as the organized journey.
Rome · YOUR QUESTION, ANSWERED
Which Catholic pilgrimage sites can I visit after Rome?
Yes, subject to your time, transport, and booking arrangements. Assisi, about 175 km and 2 hours by train from Rome, is the natural pilgrimage pairing. Other established Catholic destinations in Italy include the Shrine of St. Pio in San Giovanni Rotondo, the Holy House of Loreto, the Basilica of St. Anthony in Padua, and the Shroud in Turin, each of which needs an additional hotel base and a longer transfer. Adding more places reduces the time available for prayer and rest in Rome itself, which already needs four or five full days.
Sources & further readingBasilica of St. Francis: explore the basilicaVatican: the papal basilicas
Official sources cover institutional information. Suggested pacing and itinerary choices are planning guidance. Check current arrangements for your travel dates.