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. Cowpens Furnace Site (38CK73) -  Cowpens Furnace Site (38CK73) is the remains of an early 19th-century iron-making furnace in Cherokee County South Carolina. The site shows early American iron-making technology. The site was listed on the National Register of Historic Places in 1987.Iron making began in Upstate South Carolina just before the Revolutionary War.
Answer:
Building