The crumbling remains of a medieval chapel atop Roc de Sant Aventí

Sant Aventí is a Romanesque chapel that once stood in the Pallars Sobirà region, with its Romanesque features dating back to the 11th century. Now, all that remains are the ruins, a mound of stones atop Roc de Sant Aventí, at an altitude of 1,479.8 meters. The remains of Sant Aventí are all that is left of the original structure. It has a single nave with an apse to the east.

Sources: Wikipedia, OpenStreetMap, Wikidata