Q:Casa Oppenheimer (English: Oppenheimer House) is a historic house in Ponce Puerto Rico designed in 1913 by famed Puerto Rican architect by Alfredo B. Wiechers. The house is unique amongst other historic structures in historic Ponce for its skillful incorporation of front gardens in a very limited urban space. The historic building is located at 47 Salud Street in the city's historic district at the northwest corner of Salud and Aurora streets. 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