2138 Brattle Street, Cambridge, MA
The only thing better than obscure historical factoids is hearing them from someone in a top hat or hoop skirt. The tours are 90 minutes and hit all the historical hotspots around Harvard. If we can get 10 people together, it will be just $10 a head.
Tours are running all summer, but if we do it in July, it won't be August-level hot. There's a pretty open schedule, so suggestions are appreciated.