A historic site in Prince William County is offering free admission to active duty military personnel and their family over the summer. The Brentsville Courthouse Historic Centre has joined the Blue Star Museums program to give free admission to active duty military and up to five immediate family members from Memorial Day (Monday) through Labor Day (Sept. 6). Brentsville Courthouse Historic Centre consists of nearly 30 acres of park land and five historic structures. For information, call 703-365-7895 or go online to www.pwcgov.org/brentsville. The complete list of participating Blue Star Museums is available at www.arts.gov/bluestarmuseums.