Two buildings dominate Greensburg's skyline: the county courthouse (
WE1) and Blessed Sacrament Cathedral. This Gothic Revival sandstone church has a massive, 125-foot-tall square tower rising from the intersection of nave and transepts. Windows outlined in Indiana limestone accentuate the finely detailed exterior. The stained glass windows were made by the Franz Mayer Company of Munich, Germany. The present building is the fourth Roman Catholic church on the hilltop site. Its name was changed in 1951 when the Greensburg Diocese was formed. The cathedral is similar in detailing, plan, and style to St. Bernard's Church in Mount Lebanon, Allegheny County (
AL131) designed by William R. Perry. In 1971, Mario Celli (1910–1998) designed the alterations to the sanctuary to address the new liturgical guidelines of Vatican Council II. Next door to the cathedral is Aquinas Academy (1880), an Italianate brick school building of three stories, with dual cupolas on the facade.