Marvel at the size of Igreja Matriz. Fit in a service if you can or just wander around and enjoy the serenity.
This Santa Maria Maior e Monserrate principal church is an interesting spot to begin your day of sightseeing. There's lots to explore in the vicinity, including Sanctuary of Santa Luzia, Church of Santa Marta de Portuzelo, and Foreigners and Borders Service. Take your time at Igreja Matriz before making tracks to these other fine sights.