The Cathedral of San Martino, located in the Piazza San Martino of Lucca, is a large Romanesque cathedral built in the 12/13th century. It was built after, and fitted next to, a soaring bell tower and has a 'doesn't fit' sort of look to it.

It's all built in white and grey marble, with different rows of columns on the facade. Take a close look at the many carving on the facade, including a labyrinth which is said to represent the long struggle to reach salvation.

The interior is rather dark and austere, but there are many beautiful art treasures to be seen. Among the many, there are two not to be missed. The first is located in a chapel inside the church and is called "Volto Santo" (which means "Holy face"). It is a carved wooden crucifix with a highly detailed carving of Christ. It is believed to be the face of Jesus, made by Nicodemus (who witnessed the crucifixion).
The second is the remarkable tomb of Illaria del Carretto (bride of a Guinigi family member, sculpted by Jacopo della Quercia).