God, alcohol and even cannabis
Nestled high in France's Chartreuse Mountains, the Grande Chartreuse monastery is home to a cloister of Catholic monks.
Adherents of the Carthusian order avoid contact with the outside world, the better to focus on contemplation and prayer.
But this other-worldly setting is the birthplace of a very worldly product, Chartreuse - a strong alcoholic liqueur made from a recipe said to have been given to the Carthusians in 1605.