Please answer the following question: Sperone Westwater Gallery - Sperone Westwater Gallery is a contemporary art gallery located at 257 Bowery New York NY between Stanton and Houston Streets. The gallery stands one block north of the New Museum. The eight-story building including a mechanical floor and basement contains 20000 square feet of gallery space with the lobby and the terraces for exhibitions. The main feature of this building is the Big Red Box a 12-foot by 20-foot moving gallery. 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