Answer the following question: Canadian Grain Elevator Discovery Centre - The Canadian Grain Elevator Discovery Centre is a set of restored grain elevators located in Nanton Alberta Canada. The centre's goal is to preserve examples of old grain elevators to educate visitors about the town's and Alberta's agricultural history. 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?
Answer:
Building