This is a travel companion, carrying out a historical background of Anatolia, the Imperial cult and lifetime of St John, deals with his Letters towards the Seven Churches of Asia: Ephesus,Smyrna, Pergamum, Thyateira, Sardis, Philadelphia and Laodicea.
Mt. Kailash is considered the most sacred places on earth. It's the mother of all holy places, "Tirtha Sthaan", for followers of Lord Shiva, "Shiv-Bhakts". This holy mountain would be to Hindus as Jokhang Temple is to Tibetan Buddhists or as Jerusalem would be to followers of Christianity.
Rome and Vatican City will always be been the center of pilgrimages. With more than 900 churches within the urban area, it is simply the center of Christianity