In pictures: Notre-Dame cathedral ravaged by fire

Fabien Barrau / AFP | Smoke billows as flames burn through the roof of the Notre-Dame de Paris Cathedral on April 15, 2019, in the French capital Paris.

Paris's 850-year-old Notre-Dame Cathedral was ravaged by flames Monday night, causing the collapse of its central spire and untold damage to the medieval building, though firefighters said they were able to save the main structure.