The French president praises the cathedral's restoration with the building set to open to the public on 7 December.

Macron was welcomed inside by the chief architect of France’s national monuments, shown sacred objects that survived the fire and given explanations of how areas such as the roof and window were remade. The BBC’s Paris Correspondent wrote that it had been a “spectacular experience.”

You’ve achieved what was said to be impossible,” the French president told workers at the Paris monument, which will reopen after the 2019 fire.