Charles Bandes, professional photographer, posts some photos of a couple who really, really like the Mattapan High-Speed Line:

... Liz and Dave wanted something different [for their engagement photos], and arranged for us to get access (and a photography permit) to the car-house at the Mattapan red line station. We were able to board the trolleys and wander the tracks, resulting in photos that are quite different from my usual engagement photos. ...