Pope John Paul II Park
66 acres, formerly, in part, the site of the Neponset Drive-In 
and a landfill. Pope John Paul II Park now offers picnicking, trails, athletic fields, and more. This is also a good place to look for birds and wildlife, which have also benefited from the restoration.
Wikipedia
The park received funding and work began in 1998, following several years of delays.[5] It was constructed on the sites of a former drive-in theater (the Neponset Drive-in Theater) and an adjacent landfill (the Hallet Street dump) purchased in 1984 and 1973, respectively, by the Massachusetts Metropolitan District Commission (now the Department of Conservation and Recreation). It was named in honor of the visit by Pope John Paul II to Boston in 1979, in which the Pope celebrated his first Mass in the United States. The park was dedicated in 2000 by then Massachusetts Governor Paul Cellucci and opened to the public in 2001. Following the canonization of Pope John Paull II, the park was officially redesignated as the “Saint Pope John Paul II Park”, in a bill signed by Massachusetts Governor Charlie Baker in 2019.