Question: what relics are kept at notre dame?
Answer: CROWN OF THORNS. Regarded as the cathedral's most sacred relic, Paris Mayor Anne Hidalgo says the Crown of Thorns was saved. ... 
FRAGMENT OF THE HOLY CROSS AND NAIL. ... 
THE ORGAN. ... 
THE ROOF. ... 
THE BELLS. ... 
STAINED GLASS WINDOWS. ... 
PAINTINGS. ... 
STATUES.