56 of 74
jpg [80.2 kB, 600 x 395]
Rousanou Monastery in the Meteora region was one of 20 monasteries built on natural sandstone pillars in the 14th century by monks taking refuge from the advancing Turks. The only ingress was by ladder or rope and net.
Factbook images and photos — obtained from a variety of sources — are in the public domain and are copyright free.