The Sanctuary of Loiola (Azpeitia): An impressive Baroque complex, 45 km southwest of San Sebastián. It was built in honor of Saint Ignatius of Loyola, founder of the Society of Jesus, around his birthplace (the Holy House), which is preserved as a relic inside. Its basilica with a circular dome stands out.
The Hermitage of La Antigua (Zumarraga): Known as “the cathedral of the hermitages” and the ultimate representation of Basque Romanesque architecture. It stands out for the beauty of its interior, which combines stone with a wooden structure that evokes the hull of a ship. It is reached by following the Urola river from Loiola.
The Sanctuary of Arantzazu (Oñati): Located in a stunning natural environment after climbing the Arantzazu mountain pass. It is the most illustrative example of contemporary Basque art, featuring works by artists such as Jorge Oteiza (including the controversial sculpture of the 14 apostles), Eduardo Chillida, and Néstor Basterretxea.