I've had the pleasure of the Danish capital, possibly my favourite city in Europe. Their train system is amazing. The Danes are odd I found, in banks and shops they will dutifully line up in a queue (cue) but on trains, getting on and off, it's all-for-one and one-for-all ... a bloody nightmare!!
I caught the train from Copenhagen Centrum to the ugliest city in Europe, Malmo, across that amazing bridge, whos name escapes me. Cars on top, trains below ... stunning engineers those Vikings.