Wonderful quiz (and a bonus cheer for the genius who thought to answer "Belgian coast"!) Note that Kassel appears twice, and Zagreb is spelt wrong, although it accepts the correct spelling OK.
Yeah, Trams may not be the sexiest subject, but I'm a fan ;) And actually two tramwise people have gotten the "Kusttram" thus far, hah! It's a great line! And Kassel is there twice because they have 2 different tram systems (old traditional and newly opened RegioTram) and I just didn't want to add two separate systems together willy-nilly or completely ignore the other one.