The various churches and cathedrals of the world are the place of worship of Christians, where they congregate by virtue of baptism. In the photo we can see the Cathedral of Santiago de Compostela, located in La Coruña (Galicia, Spain), one of the most important places of Catholic worship in Spain. You have all the information in: «What are the main religions of the world?«.
You have all the information in: "What are the main religions of the world?".