You'll find the Iglesia de San Martín ,on the busy San Vicente street near Plaza de la Reina. The parish dates back to 1238, when a mosque was consecrated as a Catholic church just after the Moors were defeated. Pedro Albalat, the Archbishop of Tarragona at the time, was the founder of this church. It was originally a simple and sober building but with time, various architectural features were added depending on the style of the times. In the 18th century, the interior was completely reformed and is how we see it today. Some of the church's most noteworthy features include the doorways, credited to Francisco Vergara, and the incredible masonry.