Old Warren County Courthouse, Civil War museum in Vicksburg, United States.

The Old Warren County Courthouse is a building on a high hill with four columned entrances and an ornate iron stairway connecting the different levels. It now operates as a museum that displays objects and exhibitions about the region's history.

Construction began in summer 1858 on one of Vicksburg's highest bluffs, on land donated by city founder Newitt Vick; the Weldon brothers of Rodney, Mississippi, completed it in 1860 for $100,000. During the 47-day Siege of Vicksburg it was a main Union target but took only one major hit; on July 4, 1863, the Confederate flag was lowered and the U.S. flag raised. After a new courthouse opened in 1939 the building was neglected until Eva Whitaker Davis campaigned to save it, and it reopened as a museum on June 3, 1948.

The exhibits showcase personal objects from the Civil War era, including clothing, flags, and memorabilia that reflect everyday life during this period. These items help visitors understand the reality of that time in a direct way.

The building is easy to spot since it sits on a hill and is visible from around the town. Visitors should expect to climb some stairs to reach the upper levels and entrance.

The courthouse square includes four small attached buildings that once served as cistern houses, collecting rainwater to fight fires; they were later converted into offices. The building's original iron doors and shutters remain in place. During the 47-day Siege of Vicksburg, the structure suffered only one major hit.