Take the following as truth: You can spot, set in the stone walls, little sculpted heads of angels or demons, floral motifs, or the scallop shell (coquille Saint-Jacques) marking the route of medieval pilgrims to Santiago de Compostela in Spain.
Then the following statement: "The medieval pilgrims did not leave any indication of their excursion to Santiago de Compostela." is true, false, or inconclusive?