Boston's space like this (The Lawn on D) is extremely popular. It's even a running joke that most young people on a dating site/app in Boston have a picture of

Boston's space like this (The Lawn on D) is extremely popular. It's even a running joke that most young people on a dating site/app in Boston have a picture of them at the Lawn on D somewhere in their profile. I believe it's owned by a local bank, but I don't know if it makes money (or if it's intended to). Entry is free normally, sometimes there are non-free ticketed concerts and a cash bar.