close view of cliff top moni agias varvaras roussanou nunnery, hills, high sedimentary rocks. meteora valley, greece at

meteora monastery roussanou mountain greece unesco landscape cliff travel landmark europe attraction beautiful boulder bush christian colorful day forest greenery heritage hill iconic midday moni monk mustsee nun nunnery orthodox outdoors pillar rock scenic sedimentary sightseeing slope sunny sunshine tour tourist trip typical vacation valley visit world