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. Round Barn Dubuque Township -  The Round Barn Dubuque Township is an historic structure located in Dubuque Township in Dubuque County Iowa. It was built in 1915 and has been listed on the National Register of Historic Places since 1986. The building is a true round barn that measures 60 feet (18.3m) around. The structure is constructed in clay tile and features a windowed cupola and dormers on the north and west sides.
Answer:
Building