The people of Paris were left devastated on April 15, 2019, when the beloved Notre-Dame Cathedral, a towering symbol of their city for centuries, was engulfed in flames. In that moment, it seemed like the iconic monument would never recover. However, several years later, extensive repair works were initiated to restore the medieval cathedral to its former glory. Little did anyone know, this restoration project would uncover a remarkable secret hidden beneath the centuries-old structure, shedding new light on the cathedral’s rich history.