Saugus Iron Works National Historic Site
Designated - · Bortle 7.0
Dark sky places in MA
Springfield Armory National Historic Site
Designated - · Bortle 7.0
New Bedford Whaling National Historical Park
Designated - · Bortle 6.0
Boston National Historical Park
Designated - · Bortle 8.0
Adams National Historical Park
Designated - · Bortle 7.0
Lowell National Historical Park
Designated - · Bortle 7.0
Minute Man National Historical Park
Designated - · Bortle 6.0
Salem Maritime National Historic Site
Designated - · Bortle 7.0
Cape Cod National Seashore
Designated - · Bortle 3.0