History's Greatest Mysteries
The Holy Grail
TV-PG
S3 • E6 Mar 28, 2022 41m7.05.7
It's a treasure coveted by everyone from Roman Emperors to Adolf Hitler--a sacred object said to hold incredible powers of healing, resurrection and immortality. It may be the world's most sought-after relic, but what is the Holy Grail? And if it exists, can it ever be found?
