National Central Library

The National Central Library is located near Central Headquarters. The library is separated into Wings/Branches, where each branch has people working there, usually military librarians. The library is a massive database, even containing Dr. Tim Marcoh's research notes on forbidden Human Transmutation. However, the branch containing those notes is later burnt to the ground by Lust, who is trying to stop Edward Elric's research into Human transmutation, so that Edward and Alphonse will never return to normal. However, a young librarian who used to work there called Sciezka had memorised everything in the Library before she was fired. She explains to Edward and Alphonse that she was fired because of her love of reading. She also reveals that she had looked at Tim Marcoh's research notes, and using her photographic memory, copies all the information out. Afterwards, she is recruited by Maes Hughes into joining the Military librarians because of her useful photographic memory.

Father and the Homunculi may consider the Library as an obstruction, because anything can be found there. The library indirectly creates problems. For Example, Tim Marcoh's research notes on human transmutation, and Maes Hughes discovering the Nationwide Transmutation Circle shortly before he was killed by Envy, who had to stop Maes from relaying the information to Roy Mustang.