Sant’Antonio is a giant edifice without a precise architectural style. Over the centuries, it has grown under a variety of different influences as shown by the exterior details. The new basilica was begun as a single-naved church, like that of St Francis of Assisi , with an apsidal chancel, broad transepts and two square nave bays roofed with …
https://en.wikipedia.org/wiki/Basilica_of_Saint_Anthony_of_Padua