The Royal Library of Alexandria or Ancient Library of Alexandria in Alexandria, Egypt, was one of the largest and most significantlibraries of the ancient world. It was dedicated to the Muses, the nine goddesses of the arts.1 It flourished under the patronage of thePtolemaic dynasty and functioned as a major center of scholarship from its construction in the 3rd century BC until the Roman conquest of Egypt in 30 BC. With collections of works, lecture halls, meeting rooms, and gardens, the library was part of a larger research institution called the Musaeum of Alexandria, where many of the most famous thinkers of the ancient world studied. (1)
References:
1. Wikipedia page for the Alexandrian Library:
https://en.wikipedia.org/wiki/Library_of_Alexandria
2. Wikipedia page for the "Destruction of the Library of Alexandria.":
https://en.wikipedia.org/wiki/Destruction_of_the_Library_of_Alexandria
3. MacLeod, Roy and I.B. Tauris. Lost Knowledge of the Library of Alexandria. National Geographic - History, Vol. No. (August-September, 2015)