Joint the quest
As the story goes, after being left in the house of the Last Supper, the Holy Grail was taken to Rome. It was then shipped to Huesca and hidden by various Kings of Spain until finally landing up in Valencia Cathedral in the 15th century.
Officially known as the Holy Chalice, the holy grail is in fact an agate cup on display in the Cathedral. Cynical? Well, pop on your exploring shoes and take a look for yourself. Just don’t forget to stop and admire the cathedral’s beautiful architecture; it’s a treasure in itself.