THE MORNING AFTER...
MIRACLE: MOST INTERIOR INTACT...
STAINED-GLASS WINDOWS SURVIVE...
PHOTOS...
COPS LAUNCH CRIMINAL PROBE...
No sign of arson...
Alarm Was Raised 23 Mins Before Blaze Detected...
AGE, DESIGN FOILED FIREFIGHTERS...
Macron Presides Over Rare Unity...
Vows to Rebuild in 5 Years...
But could take DECADES...