Alberton School is a three-story brick school located in Alberton Montana United States which was listed on the National Register of Historic Places on January 13 1997. Constructed in 1919 at a cost of US$70000 the school was built to replace a wooden structure that burned in 1916. From its construction until 1960 it was the only high school within 40 square miles (100 km2). It continues to serve as a school and remains architecturally intact. 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?
A:
Building