Within the heart of the neighbourhood of Duanes de La Mar rises the sculptural silhouette of the Church of Nostra Senyora de Loreto. It was inaugurated in 1967 on the site of an old chapel built in 1914, also dedicated to Nostra Senyora de Loreto. It is an important example of avant-garde religious architecture, designed by the architects García Ordóñez, Dexeus Beatty, Bellot Port, Herrero Cuesta, and the engineer Gómez Perreta.

This church represents innovation and the materialisation of a time of profound economic and social changes. Undoubtedly, it is one of the most original and interesting religious buildings in the area, and it constitutes in itself a great sculpture, an example of contemporary religious architecture, which has now become a symbol of identity for Duanes.

It stands out for its daring design of lines and spatial conception. The materials used are reinforced concrete (cement and iron). It is a single nave with an oval-shaped floor plan. The walls have no corners and open upwards to the outside, ending in windows through which light enters, creating a welcoming and spiritual atmosphere. The ceiling is made of red pine wood, shaped like the hull of a ship, representing the boat of the fisherman (a biblical figure). The interior ornamentation is scarce, with the main highlight being the large suspended Christ above the main altar (by Esteve Edo). On the exterior, the height of the twelve slender pillars supporting it is impressive, symbolising an allegory to the twelve apostles.