Schmucker Hall is an American Civil War site listed on the National Register of Historic Places in Adams County, Pennsylvania, that was constructed as the original Gettysburg Theological Seminary building.

Used as both a Union and Confederate hospital during the 1863 Battle of Gettysburg, the facility served as the seminary's main building from 1832 to 1895, then as a dedicated dormitory for students until 1951.

The Museum houses displays about many different aspects of the battle, the seminary, the town, and the civil war, and the struggle among faith groups over slavery, as well as offering tours of the cupola.

The last patient at the hospital left on September 16, 1863[16] (Colonel George McFarland),[17] Lightning set the cupola afire in 1913 and seminary use of Old Dorm ended in 1954.

The Museum houses displays about many different aspects of the battle, the seminary, the town, and the civil war, as well as offering tours of the cupola.