Embark on a breathtaking aerial journey across Europe's most awe-inspiring monasteries. From the top-down shots of Bulgaria's Rila Monastery to the sun-drenched setting of Greece's Theotokos Monastery ...

The all-male autonomous community, known in Greek as Agion Oros, or Holy Mountain, is no stranger to non-Greeks. Of its 20 monasteries, one is Russian, one is Bulgarian and one is Serbian ...