St. Peter’s Basilica is marking its 400th anniversary with a series of changes that blend centuries-old tradition with modern visitor amenities, Vatican officials announced this week. Plans unveiled on Monday by the Vatican include expanded terrace access with a refreshed café area and real-time language support for Mass attendees, marking four centuries since the world’s largest church was consecrated on 18 November 1626.
At a press conference, Cardinal Mauro Gambetti, Archpriest of St. Peter’s Basilica, said that the entirety of the basilica’s rooftop terrace will now be fully accessible to visitors, compared with only about one-third of it previously. The existing “refreshment area” beneath Michelangelo’s dome will be nearly doubled in size to roughly 100 square meters to accommodate more space for pilgrims to rest and enjoy views of the Vatican.
The terrace expansion is part of broader efforts to improve visitor flow and enhance contemplation inside the basilica, which draws about 20 000 people a day. Exhibitions will also be hosted on the terrace, featuring educational displays on the basilica’s construction and history, with some activities designed specifically for children.
Gambetti acknowledged prior controversy over reports of a café at the site, which some critics saw as a commercialisation of sacred space. Officials have stated that providing basic refreshments for weary visitors, many of whom have climbed to the cupola, aligns with the tradition of welcoming pilgrims.
In addition to the terrace work, the Vatican is rolling out technological upgrades designed to make the basilica more accessible to a global audience. A new “liturgies” app and associated QR-code system will allow worshippers attending Mass inside St. Peter’s to follow the liturgy in up to 60 languages in real time on their smartphones. The service uses artificial intelligence developed in partnership with the Rome-based language services company Translated to provide both audio and text translations without requiring users to download a separate app.
“In making available a tool that helps many to understand the words of the liturgy, we wish to serve the mission that defines the centre of the Catholic Church, universal by its very vocation,” Cardinal Gambetti said in a statement about the translation platform.
The Vatican is also introducing a real-time booking system to help regulate crowds and shorten long entry queues that form on busy days. Behind the scenes, a new digital “Beyond the Visible” project has created a detailed 3D model of the entire basilica complex to support monitoring and maintenance work.
Officials said the anniversary initiatives aim to balance reverence for the basilica’s sacred function, as the site of St. Peter’s tomb and a focal point of global Catholicism, with practical adjustments that reflect the needs of millions who visit each year.
