The basilica of St. Francis of Paola is one of the more characteristics and famous churches in Naples; it is situated to the center of the curved side of plaza of the Plebiscite, in front of the Royal Building: it deals with the most important Italian church of the neoclassic period.

The church, for its circular form, remembers the Pantheon in Rome. The façade is preceded by a pronao formed by six columns and two pillars of ionic order, that hold up a lintel on which is graven the dedication  "D.O.M.D. FRANCISCO DE PAULA FERDINANDUS I EX VOTO TO MDCCCXVI."

The pronao is surmounted by a classical eardrum to whose vertexes are situated the statues representing the Religion, among St. Francis of Paola to the left, titular of the church and St. Ferdinando, to the right, in honor of the king Ferdinando. The pronao is accessible both from the parvis, and from the stairway that salt from the plaza. In the parvis there are the statues of the four cardinal virtues and the three theological virtues, while to the sides of the stairway would have had to be situated two statues representing the Pity and the Constancy, that symbolized the virtues manifested by the king and from Ferrante of Aragon: to their place was decided instead of putting the two equestrian statues in the plaza, representing the king Ferdinando (Anthonio  Canova work) and his father, Charles III of Spain (Anthonio Calì work).

The church is surmounted by three domes: the central one, 53 meters high, have been built on a tall and ample drum.

The entrance bring to an atrium, flanked from two chapels; in the right one there is a juvenile work of Luca Giordano with Sant'Onofrio Orante.

In the center there is a round, from the diameter of 34 metres, covered by a dome supported by 34 columns of Corinthian order 11 meters high and with stems in marble of Mondragone, alternated to as many pillars.

Above the colonnade there are the galleries of court and, along the walls, from right, eight statues: St. Giovanni Crisostomo made by Gennaro Calì, Sant'Ambrogio of Tito Angelini, St. Luca of Antonio Calì, St. Matteo, of Carlo Finelli, St. Giovanni Evangelista, of Pietro Tenerani, St. Mark of Giuseppe de Fabris, Sant'Agostino of Tommaso Arnaud and Sant'Attanasio of Angelo Solani.

To the altars of the chapels there are from the right the following paints, : St. Nicola from Tolentino and San Francis of Paola that receives from an angel the coat of arms of the charity, of Nicola Carta, the last communion of St. Ferdinando of Castile of Pietro Benvenuti, the Transit of St. Joseph of Camillo Gerra, the immaculate one and death of Sant'Andrea Avellino of Thomas Alive de.

In front of the entry it is the greatest altar, made in 1641 by Anselmo Cangiano, here moved to 1835 from the church of the Saints Apostles, rich of lapis lazzuli and of precious stones. To the sides two Angels Teofori in gilded cartapesta.

In the apse St. Francis of Paola resuscita a corpse, Vincent's Camuccini cloth. In the sacristy, the immaculate one of Gaspare Landi and the Circumcision of Anthony Campi.