Please answer the following question: Caln Meeting House - Caln Meeting House is a historic Quaker meeting house located at 901 Caln Meeting House Road near Coatesville in Caln Township Chester County Pennsylvania. It was built in 1726 and is a one-story tan fieldstone structure. It was enlarged to its present size in 1801.It was added to the National Register of Historic Places in 1984. Services are still held weekly at the meeting house. 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?
A:
Building