saint panteleimon saint pantaleon monastery at mount athos in autonomous monastic state of the holy mountain, greece

aegean agio architecture athos autonomous byzantine byzantium castle central chalkidiki christian christianity church constantinople culture eastern greece halkidiki historical history holy landscape macedonia medieval mediterranean monastery monastic mount mountain oros orthodoxy pantaleon panteleimon peninsula pilgrimage religion russian saint sanctuary sea seascape sight sightseeing spirituality state