Lynn, Massachusetts. Stone Tower is a 48 ft. tall field stone tower on the top of Burrell Hill. It was constructed in 1936 under the auspices of the Works Progress Administration (WPA). Built for fire observation, the tower had a wooden roof structure constructed on its top to provide shelter for crews that would man it. Set on the highest point in Lynn, this rustic field stone tower commands an impressive view of Lynn's waterfront, Boston and beyond. [Description from Friends of Lynn Woods]