A university stretched a mile along the Charles River, binding a Gothic chapel, a Tudor castle, and a former big-league ballpark into one restless urban campus.
A campus is an argument in brick about what education is for. Boston has a long-running one. Five stops over 1.3 miles, about an hour of walking. Every stop narrates itself when you get there, at whatever pace you feel like walking.
It is one of 50 tours in Boston, each taking a different line through the city. Nothing is booked and nothing expires, so you can start it on a whim and finish it whenever you like.
