The most significant monument in Brzozów is the Collegiate Church of the Transfiguration of the Lord. The history of this church dates back to the 17th century when it was built. In 2017, Pope Francis elevated the collegiate church to the dignity of minor basilica.
After entering the temple, your attention is drawn to the baroque chancel with the main altar in red and gold colors. Three pairs of columns are positioned in a row to direct the gaze to the center of the altar, in which there is a painting from the 17th century with a scene of the Crucifixion. 107 relics of saints are collected in the reliquaries in the main altar.
The main nave is decorated with a frescoed barrel vault, enriched with lunettes. Noteworthy is the pulpit from the 17th century, with the statues of evangelists and other saints, floral motifs and a sculpture of a pelican feeding the young.
On the side opposite to the altar, above the entrance, there is an organ front. The oldest information about the organ (14-voice) comes from 1699. The organ currently used, from the second half of the 20th century, has 40 voices. 
In the aisles there are, among others The altar of Our Lady of the Rosary with a painting famous for its graces, the Chapel of the Sacred Heart of Jesus, the Chapel of St. Anna with the altar of St. Anna and the historic baptismal font.
The chapel of Our Lady of Fire is unique, where in fact there is a picture of Our Lady of Consolation, known as Our Lady of Fire, in memory of its miraculous rescue from the fire in 1657. The picture was crowned in 1858. 
