turkey. region macka of trabzon city - altindere valley. the sumela monastery - 1600 year old ancient orthodox monastery of the

architectural architecture black built byzantine christian christianity cliff comnenian destination famous forest greek greekorthodox hanging imposing landmark landscape monastery monument mountain mountainous national natural nature nobody orthodox orthodoxy outdoors park popular region religion religious rock scenic sea sightseeing soumela spectacular structure sumela trabzon travel trebizond turkey turkish valley