Santiago de Compostela is a famous Christian pilgrimage site, with over a quarter of a million people last year traveling the Camino de Santiago. BRTD can't do that though, because it's Catholic.
Good point: there are tons of locations associated with different Christian saints, and any one of them could serve as a focus of pilgrimage.
Of course, if we want to avoid the "Mecca problem", we might have to start sanctifying more Americans.
Correct me if I'm wrong, but Protestants don't recognize Sainthood, right? That's the problem with being an heretic.
The Santiago pilgrimage is a pretty cool experience (I've heard). The point it to do it by foot along the historical ways :