Palencia Cathedral is dedicated to St. Antolin and is one of the largest cathedrals in Spain because it is the result of many enlargements during the years. It was declared a National Historical and Artistic Monument in 1929. The church was built over St. Antolin's crypt that was in a 7th century Visigothic church. A Romanesque church was built in 1218, while the Gothic enlargements took place between 1321 and 1516. The Chapel of the Tabernacle has a spectacular Plateresque altarpiece. The Chapel of the Monument has an ostentatious altar covered in silver in a Baroque style.
The church has a large number of works of art by famous artists, such as El Greco (a painting of St. Sebastian), Zurbaran, Pedro Berruguete, Valdes Leal, and Lucas Cranach. There is a wonderful life-size statue of Ecce Homo by Diego de Siloe. Gregorio Hernandez did the figure of St. Antolin in the main chapel. The church has more than 1,200 human figures in paintings and sculptures.