as the Kelleher Rose Garden and employed the more formal landscape style popular in the 1920s and 1930s. An athletic field was also added. In 1941, at the outbreak of United States involvement in World War II, citizens planted a victory garden within the Fens. While these were common in their era, the one in the Fens is now the last continually operating Victory Garden in existence and today is a much-valued community garden of flowers and vegetables. In 1983, the Back Bay Fens were designated as a Boston Landmark. The Emerald Necklace Conservancy is headquartered in the park and operates a year-round visitor center. Features Entrances The Back Bay Fens was designed with six entrances, with straight roads and formal lawns that contrasted with the more wild Fens. The original main entrance was the Beacon Entrance, running from Beacon Street to Boylston Street, bounded by Charlesgate East and Charlesgate West. A crescent-shaped bridge crossed over the Boston and Albany Railroad, connecting the Commonwealth Avenue Mall with the Fens at Gaston Square. The entrance has been wholly modified, beginning with the addition of a bridge for the Ipswich Street line in 1898. A bust of Patrick Collins was added shortly after the mayor's 1905 death. The Charles River Esplanade, completed in 1910, connected with the Beacon Street end of the entrance. The bridge carrying Commonwealth Avenue was replaced with two bridges for separated eastbound and westbound traffic in 1917. Storrow Drive was built along the Esplanade in 1951–55, severing the connection with the Beacon Entrance. The construction of the Massachusetts Turnpike Extension in the 1960s caused the removal of the curved bridge, separating the entrance (now Charlesgate Park) from the rest of the Fens. It was replaced with the Bowker Overpass, which overshadows the remaining parkland; the Muddy River was moved to a small side channel, and the bust was relocated east along the Mall. Isolated from the Fens, Charlesgate was included with the Commonwealth Avenue Mall in its 1978 Boston Landmark designation. The Boylston entrance is located just southeast of the Beacon Entrance, where Boylston Street meets the Fenway. A statue of John Boyle O'Reilly was added in the triangular center of the junction in 1894. The intersection was rebuilt in 1982, with the statue relocated into the park. The Westland Entrance is on the east side of the Back Bay Fens, with lawns lining a block of Westland