A. You may visit the B&O Railroad Museum at 901 W. Pratt St. Baltimore, Maryland or Mount Clare Museum House at Carroll Park, 1500 Washington Blvd, Baltimore, Maryland and purchase a combo ticket to visit both of these sites. Combo ticket prices for two sites are $18. Adults, $16. Seniors (60+), and $12. Children ages 2-12. The B&O Railroad Museum is also affiliated with Ellicott City Station. You may purchase a combo ticket to visit all three sites (B&O in Baltimore, Mount Clare Museum House, and Ellicott City Station)for $20. Adults, $18. Seniors (60+), and $14. Children ages 2-12. Combo tickets are valid for six months form the date of purchase. B&O Members receive free admission to all three sites! Visit Membership for more information.