Please answer the following question: The Delaware Division of the Pennsylvania Canal more commonly called the Delaware Canal runs from the Lehigh River at Easton (home of The National Canal Museum and terminal end of the Lehigh Canal) south to Bristol. The Commonwealth of Pennsylvania built the Delaware canal as part of its Main Line of Internal Improvements to carry anthracite coal limestone cement and lumber from the northeastern reaches of Pennsylvania to Philadelphia. 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