METEORA
The Monastery of the Holy Trinity is an Eastern Orthodox monastery in central Greece, situated in the Peneas Valley northeast of the town of Kalambaka.
The Meteora is a rock formation in central Greece hosting one of the largest and most precipitously built complexes of Eastern Orthodox monasteries, second in importance only to Mount Athos. The six monasteries are built on immense natural pillars and hill-like rounded boulders that dominate the local area.
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https://en.wikipedia.org/wiki/Meteora
