Answer the following question: The Quadrangle-Mattoon Street Historic District is a historic district in Springfield Massachusetts bounded by Chestnut Street to the West; State Street to the South; and includes properties on Mattoon Salem Edwards and Elliot Streets. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Answer:
Building