Gardens open daily from 2 pm to 5 pm. Museum open Tuesday through Sunday from 2 pm to 5 pm. Both are closed on Federal holidays. It is necessary to call ahead. 17th and M Sts.
Admission is free.
Open Mondays through Saturday and holidays from 9 am to 5 pm. Sundays from 10-5, Closed December 25. Open Monday through Friday from 9 am to 4 pm. Closed weekends and federal holidays. A 60 to 75 minute tour begins every 15 to 20 minutes.