Please answer the following question: Leone Florentine and Carpathia Apartment Buildings -  The Leone Florentine and Carpathia Apartment Buildings are located at 832 and 834 South 24 Street and 907-911 South 25 Street in Omaha Nebraska USA. Built in 1909 the buildings were listed on the National Register of Historic Places in 1985. 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