The church of San Biagio, also known as Santa Agata alla Fornace, located on the western end of Piazza Stezikoro in Catania. The church was built in the 18th century after a devastating earthquake in 1693. It stands on the very spot where, according to legend, was a furnace in which St. Agatha, patron of the city, was martyred for his faith. She first has long been imprisoned for having refused to betray their faith in Christ, then it was subjected to severe torture with fire and finally cut off her breasts.

The facade of the church of San Biagio - is the creation of architect Antonio Battaglia, who designed many other churches of Catania after the natural disaster of the late 17th century. It is designed in a neoclassical style with paired columns that support a triangular tympanum. Inside the church it consists of a single nave with clear and clean lines. Above the main altar is placed the 18th century canvas depicting the Virgin Mary of the Sorrowful, which is sometimes replaced by a statue of the Madonna. The altar itself elaborately decorated with scrolls, columns and statues of Saints John the Evangelist and Mary Magdalene.

The chapel to the right of the transept is dedicated to St. Agatha. Under the altar in a small case that stored the remains of the furnace in which the saint was martyred. In 1938, this episode in the life of Agatha depicted in a fresco by Giuseppe Barone.

The chapel to the left of the transept dedicated to the Crucifixion. One of the side altars, consecrated in honor of Saint Blaise, which is the name of the church (San Biagio in Italian). His image can be seen in the picture works by local artists. Other altars are decorated with contemporary works of Sicilian artists depicting the Holy Family, St. Andrew and St. John of Nepomuk, the martyr.