1. Cathedral of Santa María
Stone styles collide in this massive structure that anchors the southern edge of the walled city. You enter through a neoclassical portico, but as you move deeper inside, the architecture shifts backwards in time through Baroque exuberance to Romanesque solidity. The dim interior feels heavy and permanent, dominated by the constant exposition of the Blessed Sacrament on the altar—a tradition kept here for centuries that gives the building a hushed, reverent atmosphere even when tour groups are shuffling through.
Don't rush past the Chapel of the Virgin of the Large Eyes (Virgen de los Ojos Grandes) at the back. The baroque explosion of detail here contrasts sharply with the austere gray stone of the main nave, housing the city's patron saint who allegedly gazes back at you with startling intensity. It is a distinct spiritual stop compared to the more academic ruins nearby.
If you are prioritizing religious Lugo attractions, this should be first on your list before the smaller parish churches. The audio guide is helpful for decoding the mix of architectural eras, which can look messy to the untrained eye but tells the story of the city's wealth and evolution better than any textbook.