Home › Venues › The Improper Bostonian The Improper Bostonian Tickets Buy tickets for concerts at The Improper Bostonian in Cape Cod, MA. No Upcoming Events No upcoming events scheduled at The Improper Bostonian. Please contact us with any corrections. Hotels & Lodging Near The Improper Bostonian About the Venue The Improper Bostonian At-a-Glance Address626 Main StreetCape Cod, MA 02639United States Map & Directions Advertisement