Parcel Row Mailwalls began as a practical solution when the neighborhood's original post office closed and residents refused to surrender communal mail delivery. Over decades, each building owner along the corridor installed their own mailbox tier, and the walls grew organically into the dense, layered system seen today. The Row is now semi-official, semi-private, and entirely its own thing — trusted by most, understood by few, and quietly avoided by anyone who has received a warning about it.