A Canton drive from Paul Revere's pioneering copper mill to a stone railroad viaduct and the edge of the Blue Hills
Canton was built to make things, and the buildings still say so. Four stops over 9.8 miles, about 37 minutes of driving. Every stop narrates itself when you get there, at whatever pace you feel like walking.
Nothing is booked and nothing expires, so you can start it on a whim and finish it whenever you like.