Please answer the following question: 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. United States Post OfficeWhitinsville Main - The US Post OfficeWhitinsville Main is an historic post office building located at 58 Church Street in the village of Whitinsville in the town of Northbridge Massachusetts. The Colonial Revival masonry building was built in 1938 and is distinguished for the massive pilasters that flank the central entrance and for its cupola.The building was listed on the National Register of Historic Places in 1987 and was included in the Whitinsville Historic District in 1983.
A:
Building