The Civil War Interpretive Center at Historic Blenheim is a visitor's first stop before strolling through the grounds. It provides introductory information, explaining this site's historical significance to the Civil War. It features exhibition spaces and a classroom, which are available for event rental.
Visitors will find two preserved buildings, Blenheim and Grandma's Cottage, each portraying 19th century life and culture. Every year, on May 7, the center hosts a Civil War reenactment of Ulysses S. Grant's confrontation with Robert E. Lee in 1864.