Plan for the Philadelphia Parkway, now the Benjamin Franklin Parkway, in the city of Philadelphia, Pennsylvania, USA. This plan was first published in 1907 by the architects Horace Trumbauer, Clarence Zantzinger and Paul Cret. The Parkway linked the city's administrative centre with the green space of Fairmount Park. The plan was modified in 1917 by Cret and Jaques Greber. Construction began that year and was completed in 1926.