Scenes of Notre Dame Cathedral in flames

People watch the landmark Notre-Dame Cathedral burning in central Paris on April 15, 2019- A fire broke out at the landmark Notre-Dame Cathedral in central Paris, potentially involving renovation works being carried out at the site, the fire service said. (Photo by Nicolas Liponne/NurPhoto via Getty Images)

Nicolas Liponne | NurPhoto | Getty Images

People watch the landmark Notre-Dame Cathedral burning in central Paris on April 15, 2019- A fire broke out at the landmark Notre-Dame Cathedral in central Paris, potentially involving renovation works being carried out at the site, the fire service said. (Photo by Nicolas Liponne/NurPhoto via Getty Images)