https://www.flickr.com/photos/fischerfotos/26444557751/ - Mark Fischer_flickr - A Coptic monk in the Monastery of Saint Bishoy, the most famous Coptic Orthodox monastery in Egypt. It is located in Wadi El Natrun (the Nitrian Desert), about 100km north and west of Cairo, Egypt. The monastery was founded by Saint Bishoy in the fourth century AD and is surrounded by a keep, which was built in the fifth century AD to protect the monastery against the attacks of the Berbers. (Thanks, Wikipedia)