With its collection of historic homes, museums and battlefields, Frederick, Maryland, is a must-see destination for any history enthusiast. The sites of two bloody Civil War battles are preserved at Monocacy National Park and South Mountain State Park. Within the city, visit the National Museum of Civil War Medicine and learn how soldiers wounded in those battles were treated, or visit the house of Barbara Fritchie and picture her hanging the Stars & Stripes in defiance of the Confederate Army.