Please answer the following question: Hollister Carnegie Library - The Hollister Carnegie Library (previously: Hollister Free Public Library; now Hollister City Hall) is located on 375 Fifth Street in Hollister California US. Established in 1912 as a Carnegie library decades later it was re-purposed as a city hall. The building is part of the downtown's National Register-listed historic district and was entered itself into the National Register on March 26 1992. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
A:
Building