The News in Print blog has compiled a list of the seven most impressive libraries from through history.
Another early library was the Celsus Library in Ephesus, built in 110 A.D. by the Council Gaius Julius Aquila. The library became one of the largest collections of antiquity, storing an estimated 12,000 hand-written books. Books could not be taken out of the library, but were handed to readers by library officials and read in the reading room.
Interestingly, the library had its own temperature regulation system: a second set of outer walls to protect the books from humidity and temperature variations.
Like the Great Library at Alexandria, the Celsus, too, was destroyed by fire in the third century A.D. but parts of the front wall survived and were restored in the fourth century.