Photograph by Evgeny Kornilyev, National Geographic Your Shot
In Meteora—"rocks in the air"—sandstone spires rise from the plain of Thessaly like tall lumps of clay on a potter's wheel. Seeing the area as a religious retreat, monasteries sprung up here, beginning in 1336. At one time there were 24; today, 13 remain and six are open to the public. The area was added to the World Heritage List in 1988.
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