close view of moni agias varvaras roussanou nunnery and spectacular massive rocky pillars of meteora, thessaly, greece

meteora monastery roussanou mountain greece unesco landscape cliff travel landmark attraction christian holy rousanou beautiful colorful destination europe excursion forest heritage holiday massive moni monk nun nunnery outdoors pillar rocky sights sightseeing spectacular thessaly tour tourism tourist vacation visit world kalambaka hill greek orthodox rock stone scenic