Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Cardiff Central Library -  Cardiff Central Library (Welsh: Llyfrgell Ganolog Caerdydd) is the main library in the city centre of Cardiff Wales. Four buildings have been named as such with the newest building opening on 14 March 2009 and officially being opened a few months later on 18 June 2009 by the Manic Street Preachers. The first Cardiff library was opened in 1861 as the Cardiff Free Library later expanded and known as the Cardiff Free Library Museum and Schools for Science and Art.
The answer to this question is:
Building