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Tens of millions of Hindus, bathe in holy waters at the Kumbh Mela, Jews from around the world make their way to the Western Wall in Jerusalem. Islam has the Hajj - a Pilgrimage to Mecca and Christians have walked the same paths for centuries. Many others are eschewing ideas of a "traditional" holiday or break and are seeking some sort of spiritual enlightenment instead. What do they get out of it? Mike Williams asks why the Pilgrimage is getting ever more popular.

Producer: Jim Frank.