The Watertown Arsenal is a property that has had many lives. It is mostly known today as a shopping center but for 175 years it was a U.S. Army research facility responsible for some of the most critical innovations in military technology, many of which ended up in civilian use later. Photos and contact: https://www.instagram.com/lostmassachusetts/

Sources, links, blog, etc.: https://lostmassachusetts.com/a-lost-place/f/the-arsenal-e40