The reopening of Notre Dame this coming weekend will be a high-security affair, with a repeat of some of the same measures used during the Paris Olympics.

Half a decade after a catastrophic blaze reduced Notre Dame Cathedral to ruins, the beloved Parisian monument stands restored in all its glory. A first look at the completed interiors, revealed during a visit by French President Emmanuel Macron, showcases a detail-intensive transformation that blends cultural preservation with modern protections.