The dead return home. Families build ofrendas (altar offerings) with marigold paths, sugar skulls, photographs, the deceased’s favorite foods, and pan de muerto (bread of the dead). Cemeteries fill with families who clean graves, play music, and spend the night with their dead. The tradition fuses Aztec ancestor veneration (the month of Miccailhuitontli, dedicated to the Lord of the Dead) with Catholic All Souls’ Day. UNESCO Intangible Heritage.