The Cathedral of Calahorra is located in the town of Calahorra, Spain. It was built on the site of an ancient Roman temple and later a mosque, reflecting the region's diverse history. The cathedral features a mix of architectural styles, primarily Gothic and Renaissance, and is known for its impressive altarpiece and beautiful stained glass windows. The cathedral is dedicated to Saint Mary and serves as the seat of the Diocese of Calahorra and La Calzada-Logroño. It is an important religious site and a popular tourist attraction, drawing visitors who appreciate its historical significance and artistic beauty.