Driving towards the ancient Armenian city of Vagharshapat, it is impossible to miss the snow-capped peaks of Mount Ararat dominating the horizon under a cloud-washed azure. Set against the backdrop of the “Holy Mountain” — where Noah's Ark is believed to have rested after the Great Flood — lies the rock on which the world's oldest Christian country was built.The Etchmiadzin Cathedral, the mother church of the Armenian Apostolic Church, was const…