After your basilica visit, the easiest place to buy St. Peter’s Basilica souvenirs is the gift shop at the visitor center on Via della Conciliazione, just outside St. Peter’s Square. It works well for visitors who want a more ordered alternative to the souvenir stalls around the Vatican, with a stronger focus on religious keepsakes, books, postcards, and Basilica-themed gifts. Because it sits outside the church interior, you can fit shopping before or after reserved entry, an audio-guided visit, or a dome climb.