period, the city limited access to Logan Square to homeowners with property connected to the square who paid for its upkeep; the city constructed a wrought iron fence around the square in 1852. In 1864 the square was the site of the Great Sanitary Fair, a fundraising event in support of the United States Sanitary Commission to help raise money, support, and buy medicine for the Union troops during the American Civil War. President Abraham Lincoln visited the fair and donated forty-eight signed copies of the Emancipation Proclamation, which sold for $10 each. In 1881 the Pennsylvania Railroad constructed a viaduct that disconnected Logan Square and Rittenhouse Square, altering William Penn’s original plan of connectivity between the city's five squares. As early as the 19th century, the square was used as a location for concerts and other community events. Since the 1890s the city had envisioned constructing of a boulevard similar to the Parisian Champs-Élyséese and in 1907 the plans were approved. The square began to transform again: the original bounds of the square—18th Street to the East, 20th Street to the West, Race Street to the South and Vine Street to the North remain intact, and the square began to more closely resemble its appearance today, distinguished by its circle. Construction began in 1917 on a plan to connect Center City with Fairmount Park which later became a segment of Benjamin Franklin Parkway. It was designed by Jacques Gréber, a French landscape architect who converted Logan Square into a circle similar to the oval of the Place de la Concorde in Paris. Philadelphia even modeled its Free Library and Family Court Building after the twin buildings of the Hôtel de Crillon and the Hôtel de la Marine in Paris. Among the sites in its immediate vicinity are the Swann Memorial Fountain at the center of the circle, Parkway Central Library, the former Philadelphia Family Court Building, the Academy of Natural Sciences, the Franklin Institute, Moore College of Art and Design, the Roman Catholic Cathedral-Basilica of Sts. Peter and Paul, and the Mormon Philadelphia Pennsylvania Temple. The circle itself is the subject of the local band The Wonder Years' song 'Logan Circle' from their studio album The Upsides. Recent redevelopment In early 2005, The Pennsylvania Horticultural Society(PHS) began efforts to clean up and redevelop the park to make it more accessible and inviting to pedestrians. Most noticeably the large paulownia