The Boston/Cambridge Innovation Trail — Walking Tours Sept. 22, Oct. 8, and When You Wish

You’ve walked Boston’s Freedom Trail, and now you can walk The Innovation Trail between Boston and Cambridge. The Innovation Trail currently features 21 stops between Government Center and Central Square, highlighting world-changing ideas that have come from our community since the American Revolution. A work in progress — historian Bob Krim has cataloged 400+ innovations from the area —  The Innovation Trail already covers anesthesia, vaccines, color movies, the telephone, cameras, email, radar, guidance chips, rubber firehose, the Human Genome Project, and more. There are several opportunities for tours: