This was a destination site for us and we were not disappointed, thanks to the useful Trip Advisor reviews found here. It's a small, two-story museum, very clean, up-to-date displays, many designed to engage w/ interactive components. A story of one wounded Civil War soldier is tracked multiple times through the exhibit - very engaging. The displays of artifacts, some using mannequins, are accompanied by concise printed info. We spent 2 hours here, more than we thought we would, but we are Civil War enthusiasts. Friendly, welcoming staff. Other thoughts -
The exhibits clearly target children but I wouldn't recommend the museum for the very young. Some displays are graphic.
Be sure to check the Frederick, MD visitors' website before you go. We found a coupon for a 2 for 1 admission - so for $9.50 for 2 rather than $19 for 2 we felt it was an excellent value.