Fodor's Expert Review Fort Frederick

Along the Potomac River stands Fort Frederick, the only remaining stone fort from the French and Indian War. Built in 1756 and named after Frederick Calvert, the sixth Lord of Baltimore, Fort Frederick's stone walls protected Maryland's frontier settlers. Today, a visitor center displays artifacts from the French and Indian War and several times a year, staff and volunteers dressed in 18th-century period clothing give visitors a taste of life in the Colonial era. The park also offers hiking trails, skiing, boating, and canoeing.