Merrimack-Middle Street Historic DistrictBoston and Lowell Railroad MemorialCity Hall Historic DistrictBoarding House ParkEastern Canal ParkKerouac CommemorativeLucy Larcom ParkSouth Common Historic DistrictSouth Common ParkWashington Square Historic DistrictWash ParkCentralvilleLowellMcPherson PlaygroundLowell National Historical ParkBelvidereBleacheryPawtucketvilleHovey SquareOaklandsFlaggy Meadows PlaygroundDracutTyler Park Historic DistrictAvco - Lowell HeliportSouth LowellLoon HillBump HillPrinceton VillageWang HeliportWestlandsKenwoodWamesitCollinsvilleNorth TewksburyNorth ChelmsfordChelmsford CenterWillowdaleChelmsfordLong Pond ParkNorth Billerica