The inside of the basilica is adorned with statues of saints, including St. Lawrence, St. Cecilia, St. Rose of Lima, St. Patrick, and St. Peter the Apostle.

Above the high altar in the sanctuary is a Spanish wood carving of the Virgin Mary and John the Apostle mourning at the crucifixion of Christ.

Behind the wood carving of the crucifixion and covering the entire wall of the apse are polychrome, terra cotta, ornamental partitions of the Four Evangelists and Archangels St. Raphael and St. Michael.

On the front of the Marian altar are carvings of St. Margaret, St. Lucia, St. Cecilia, St. Catherine of Alexandria, St. Barbara, St. Agnes, St. Agatha, and St. Rose of Lima.

The stained-glass window above the altar depicts the Nativity of Christ, similar to the tile painting in the Marian chapel.

The eastern wall's window is a stained glass painting depicting the death of Saint Joseph in the arms of his family: Jesus Christ and the Blessed Virgin Mary.

The chapel's altar and part of the apse wall are a mosaic of bits of tile assembled by Rev.

The basilica includes a rectory for the priest, a Catholic library, and a gift shop for tourists, which are open after weekend Masses.

[6] The basilica had water leaks, falling masonry due to mortar problems, and a copper dome that had reached its life expectancy.