Being the largest library in Columbia University, New York, The Butler Library faithfully serves the students and faculty of the prestigious institution with its impressive collection of 2 million books. Opened in 1934, this library was initially named "South Hall", but later changed its name to "Butler Library" in honor of Nicholas Murray Butler, the president of Columbia from 1902-1945. The library primarily caters to humanities students, with added emphasis on the fields of history, literature, religion and philosophy. Enter the library and be awed by the mural depicting Athena defeating two devils, which was interestingly created by a Yale student. For those of you more interested in the University in general, make sure to check out their 45-minute long guided historical tour of the campus.