PARIS, FRANCE - APRIL 15: Flames and smoke are seen billowing from the roof at Notre-Dame Cathedral on April 15, 2019 in Paris, France. A fire broke out on Monday afternoon and quickly spread across the building, collapsing the spire. The cause is yet unknown but officials said it was possibly linked to ongoing renovation work. (Photo by Chesnot/Getty Images)
Getty Images

Getty Images News Chesnot

PARIS, FRANCE - APRIL 15: Flames and smoke are seen billowing from the roof at Notre-Dame Cathedral on April 15, 2019 in Paris, France. A fire broke out on Monday afternoon and quickly spread across the building, collapsing the spire. The cause is yet unknown but officials said it was possibly linked to ongoing renovation work. (Photo by Chesnot/Getty Images)
Getty Images

Getty Images News Chesnot

PARIS, FRANCE - APRIL 15: Flames and smoke are seen billowing from the roof at Notre-Dame Cathedral April 15, 2019 in Paris, France. A fire broke out on Monday afternoon and quickly spread across the building, collapsing the spire. The cause is yet unknown but officials said it was possibly linked to ongoing renovation work. (Photo by Pierre Suu/Getty Images)
Getty Images

Getty Images News Pierre Suu

PARIS, FRANCE - APRIL 15: Flames and smoke are seen billowing from the roof at Notre-Dame Cathedral April 15, 2019 in Paris, France. A fire broke out on Monday afternoon and quickly spread across the building, collapsing the spire. The cause is yet unknown but officials said it was possibly linked to ongoing renovation work. (Photo by Pierre Suu/Getty Images)
Getty Images

Getty Images News Pierre Suu

PARIS, FRANCE - APRIL 15: Flames and smoke are seen billowing from the roof at Notre-Dame Cathedral on April 15, 2019 in Paris, France. A fire broke out on Monday afternoon and quickly spread across the building, collapsing the spire. The cause is yet unknown but officials said it was possibly linked to ongoing renovation work. (Photo by Chesnot/Getty Images)
Getty Images

Getty Images News Chesnot