The Cathedral of St. Oleguer, located in Terrassa, Spain, is a prominent example of Romanesque architecture. Built in the 11th century, it features a simple yet elegant design, characterized by its sturdy stone walls and arched windows. The cathedral serves as a significant religious site and a historical landmark in the region. Inside, visitors can find beautiful frescoes and intricate altarpieces that reflect the artistic styles of the time. The cathedral is dedicated to Saint Oleguer, a notable figure in the history of the Catalan church. It remains an important place for worship and community gatherings.