Two years took a film crew to gain access to one of the most sacred places of Greek Orthodoxy, the monasteries of Mount Athos. 

The Bob Simon, the creator of documentaries for "CBS" describes how the monasteries, the monks spend most of their time in prayers and is cut off from the rest of the world. 

Even Simon featured the Mount Athos as the most "unaltered" part inhabited by people. 

Both Bob Simon, presenter of the show, and the Greek-American Michael Karzis, producer, built a stunning trek on Mount Athos.