The Holy Grail is the main artifact of Indiana Jones and The Last Crusade. It has the ability to give eternal life to the person who drinks from it, while the false grail kills of old age. Notice that's how Walter Donavon dies.
In the Last Level of LEGO® Indiana JonesEdit
The Holy Grail appears in the LEGO Indiana Jones: The Original Adventures video game. You have to get past many traps before reaching the area to choose a grail.
The Holy Grail also appears in LEGO Indiana Jones 2: The Adventure Continues. To get the grail at the end, all you do is do the book thing and then you make Indy whip over to the seceret cup room, get the brown one, (It's easy because it looks different from all the other cups) whip back, and put it on the thing. Then, you win!!!!!