Sts. Peter and Paul is one of the most architecturally elaborate churches in the south central region. A square tower at the center of the gabled facade rises eighty-five feet to an intersecting hipped gable roof of the kind commonly found in southern Germany. Exterior details include extensive brick corbeling and arched stained glass windows in heavy wooden frames. The interior of the nave and chancel have domed ceilings and a continuous band of stencil work at the height of about four feet. The nave door is leather, covered with trefoil windows and brass-headed nails, under a stained glass arch. Four large canvas paintings on the ceiling depicting biblical scenes were added in 1953. A rectory was added to the site in 1914, and a Catholic high school (1923) was the first and only hight school in Strasburg. Originally, the teachers were Ursuline sisters and classes were conducted in German as well as English.