Answer the following question: Speedwell Ironworks - Speedwell Ironworks was an ironworks in Speedwell New Jersey USA just north of Morristown Morris County New Jersey United States. It is on Speedwell Avenue part of U.S. Route 202. The site is where Alfred Vail and Samuel Morse first demonstrated the electric telegraph and the site provided most of the machinery for the SS Savannah which was the first steamship to cross the Atlantic Ocean. 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