Fascinating!
The Cairo Genizah
Located in the Ben Ezra Synagogue in Fustat (Old Cairo), Egypt, this particular Genizah was a massive, windowless attic room built high into the structure. To put papers in it, the synagogue's caretaker had to climb a tall ladder and drop the documents through a hole in the wall. Because the local community never got around to burying the papers, this high, hidden room acted like a time capsule for over a thousand years. When it was rediscovered in the late 19th century, it contained nearly 300,000 manuscript fragments.