Seville Cathedral, one of the grandest Gothic churches in Spain and the third largest in the world, was built in the 15th century in the center of Seville, in the Andalusian region. Once a mosque and later converted into a Christian church, the church's iconic La Giralda tower blends Moorish and Renaissance styles. The church has an ornate interior with a collection of art treasures and is believed to be the burial place of the navigator Christopher Columbus. A World Heritage Site, Seville Cathedral is a must-visit destination for exploring Spain's history, art and religious culture.