When entering the main church of the monasteries you will be in the exo-narthex.  Church windows are usually fitted with stained glass as you can see here in the exo-narthex of the Romanian Skite Podromou.This is a window in the exo-narthex of the katholikon of Iviron.

These photo’s are made through the stained glas of the churchwindows of Podromou.The holy mountain seen from the church of Podromou.

hv