The historic Old Library is one of Olean's most beautiful and treasured landmarks, and has been a cornerstone of event hosting for greater Olean and surrounding areas since 1983. Built in 1909, with funds provided by the philanthropist Andrew Carnegie, this grand venue was designed by architect Edward L. Tilton in the Beaux-Arts style, with interior features including a grand stairway and entrance, two fireplaces, and a central atrium. This beautiful, historical landmark was listed on the State and National Register of Historic Places in 1985.