St. Stephen's Episcopal Church is a historic parish of the Episcopal Diocese of Pennsylvania, founded in 1823 in Philadelphia, Pennsylvania and located at 19 South Tenth Street, on the corner of Tenth Street and Ludlow Street. St. Stephen's was designed by William Strickland in the Gothic revival style. It is the oldest extant building in Philadelphia in this style and was designed by an architect-engineer best known for Greek Revival buildings, though, like his mentor Benjamin Latrobe, he produced buildings in other "picturesque" styles as well. St. Stephen's first service was held on February 27, 1823. On June 4, 1979, it was added to the National Register of Historic Places. On May 28, 1957, it was designated a historic landmark by the Philadelphia Historical Commission. History Called "bold" in its time, St. Stephen's is an example of Philadelphia's earliest Gothic Revival buildings that responded to the great local demand for this type since the 1780s. Long considered "misunderstood" Gothic, this early or "Georgian" Gothic, popular in 18th-century Britain, recalls the architecture of Protestant Tudor England (1485–1603) rather than the high Gothic of the Pre-Reformation 12th century that inspired the familiar Gothic Revival from the 1830s on. Architect Frank Furness added a transept and vestry room in 1878. A plaque on the outside front wall, apparently unrelated to the oval Philadelphia Historical Commission marker above it, reads: "THIS CHURCH IS BUILT ON THE SITE WHERE BENJ. FRANKLIN FLEW HIS FAMOUS KITE," though the history of the marker is unclear, and apparently unrelated to the oval Philadelphia Historical Commission marker above it. Artwork The sanctuary contains a great deal of artwork from throughout the church's history. Sculptor Carl Johann Steinhauser was commissioned to create two sculptures for the church: the "Angel of the Resurrection" (also known as the Burd Children's Memorial, for three of the children of Edward Shippen Burd and Eliza Howard Sims Burd) in 1852 and the Burd Baptismal font, completed in 1857. Architect Richard Upjohn designed a side chapel (1849–1853) to house the Burd Children's Monument. Other artwork includes the Burd Canopy Tomb (c. 1860), designed by architect Frank Wills and sculpted by Henry Kirke Brown; various memorials to former rectors; and, until it was purchased by the Philadelphia Museum of Art in 2004, the sculpture The Angel of Purity by Augustus Saint-Gaudens. The sanctuary features stained glass windows created by D'Ascenzo Studios as well as Louis Comfort Tiffany