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. Scales Mound Historic District - The Scales Mound Historic District is a historic district in the small Illinois village of Scales Mound. The district encompasses the entire corporate limit of the village and has more than 200 properties within its boundaries. The district was added to the U.S. National Register of Historic Places in 1990.
The answer to this question is:
Building