January/February: closed March: Saturday from 2 p.m. to 6 p.m. April – May – October: Thursday and Saturday from 2 p.m. to 6 p.m. June – July – August – September: Tuesday, Thursday and Saturday from 2 p.m. to 7 p.m. November – December: Saturday from 2 p.m. to 5 p.m. Individual visits: Duration: 30 min Self-guided tour Guided tour