The Santa Iglesia Basílica Catedral Metropolitana de San Salvador de Oviedo is a Gothic cathedral, also known as Sancta Ovetensis, referring to the quality and quantity of the relics it contains.

Construction began at the end of the 13th century with the chapter house and the cloister, and continued for three centuries until the tower was completed in the mid-16th century. Subsequently, an ambulatory was added in the 17th century, as well as several chapels attached to the side naves.

The church is located on the site of the former pre-Romanesque cathedral complex from the 9th century, some of whose buildings have survived. For this reason and the length of the construction of the current building, it contains structures of pre-Romanesque (Holy Chamber), Romanesque (vaults and apostolate of the Holy Chamber), Gothic (façade, naves and cloister), Renaissance (top of the tower) and Baroque (Girola, Chapel of the Chaste King and other chapels) styles.

The Holy Chamber, dating from the 9th century, has been declared a World Heritage Site by Unesco and houses the cathedral's most precious jewels: the Victoria and Los Ángeles crosses, symbols of Asturias and the city of Oviedo respectively, the Agate Box and the Holy Ark, which contains a large number of relics including the Holy Shroud.

In 2015, in the approval by Unesco of the extension of the Way of St. James in Spain to "Caminos de Santiago de Compostela: Camino francés y Caminos del Norte de España", it was included, with the Holy Chamber, as one of the individual assets of the primitive route.