In 1898, a Minnesota farmer uprooted a large stone dating back to 1362 covered with mysterious runes. Is it proof that the Knights Templar discovered Americä Has the Holy Grail been in America all along?
The existence and location of the Ark of the Covenant has remained one of the most enduring mysteries in archaeology. Follow global quest-detective Professor Tudor Parfitt as he decodes texts and clues to track it down.