Panoramic view of Greek Orthodox Saint Catherine#8217;s Monastery. Credit: patano/Wikimedia Commons CC BY-SA 3.0 Saint Catherine#8217;s Monastery, at the foot of Mount Sinai, whose future is in doubt after a decision by Egypt to close and seize it, is one of the most important Christian monasteries in the world. Not only is it one of the oldest working Christian monasteries, but it also houses a library that preserves the second-largest collection of early codices and manuscripts in the world?outnumbered only by the Vatican Library. The monastery, which is Orthodox, is a UNESCO World Heritage Site. It is sacred to all the three Abrahamic faiths?Judaism, Christianity, and Islam. It was...