The cathedral's "most precious and most revered object" is the Crown of Thorns, according to France's tourism website. Before Jesus was crucified, Roman soldiers mocked him and stuck a crown made of thorns on his head. However, around the world, others claim to have portions of the crown or single thorns.
Read more interesting facts about the famed Notre Dame Cathedral HERE
USA TODAY: 850-year-old Notre Dame survived Revolution: 4 other things to know: