How did an onyx cup thought to be the Holy Grail disappear from the Church of the Holy Sepulchre in 909 AD? This historian's breakthrough might provide some intriguing answers.
The quest for the Holy Grail has consumed knights and crusaders, and has inspired legendary tales and Hollywood blockbusters. Could it be that the epic search is finally over? One church in Spain says they have found the sacred chalice, and that they have evidence to prove it, but some experts believe this is just the latest in a long line of false claims. Our team traces the extraordinary story behind this ultimate relic and uses forensic and historic analysis in an attempt to solve this 2,000-year mystery.
Watch this episode online now.
Stream hundreds of shows by starting your free trial to Smithsonian Channel Plus. Check the availability of this title and explore our vast library of original documentaries and series.
Access even more free Smithsonian Channel full episodes and documentaries online through participating TV providers.
Find out if your television provider carries Smithsonian Channel.
Don't panic! It's simple to upgrade to the latest version of one of these browsers:
Don't panic! To get the best possible experience on smithsonianchannel.com we recommend you upgrade your operating system.
For the best possible site experience, please use Chrome for Android.
Add username "SmithsonianChan" on Snapchat for fun and fascinating facts. We'll be sharing spontaneous photos and videos as inspiration strikes.