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.
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