The Church of San Martín de Tours in Gazeo is a remarkable example of Romanesque architecture in Araba, located in the small village of Gazeo, near Agurain-Salvatierra. Dating back to the 13th century, this small rural temple reflects the artistic and religious influences of the period while preserving significant elements from its original construction.

The church follows a simple yet elegant design, with a single nave ending in a semicircular apse, characteristic of Romanesque structures. The exterior is austere, featuring small openings that allow limited natural light to enter. The entrance is adorned with a modest but finely crafted Romanesque portal, which exhibits typical decorative motifs such as geometric patterns and vegetal designs.

One of the most distinctive aspects of San Martín de Tours is its interior, where 14th-century Gothic frescoes were discovered under layers of lime during restoration work. These murals depict religious scenes, including representations of the Last Judgment, with vivid colors and expressive details that provide insight into medieval spirituality and artistic expression. The contrast between the Romanesque structure and the later Gothic paintings adds to the church’s historical and artistic value.