Answer the following question: The Jewel Box (also known as the St. Louis Floral Conservatory and the City of St. Louis Floral Display House) is a greenhouse located in Forest Park St. Louis Missouri. It now serves as a public horticultural facility and is listed on the National Register of Historic Places (NRHP).It was designed by architect William C. E. Becker and built in 1936 by the Robert Paulus Construction Company. 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?
Answer:
Building