These bikes are found all over the downtown area and are rentals. You pay with a credit card and apparently drop it off at your destination. I'm sure there are strict regulations or it just wouldn't work and maybe when I figure it out I'll give it a go this summer.
Fabulous capture and scene. As I mentioned before, very popular in Hamburg for at least 6 years now. They have parking stations for them and all over and you have to return it to one of these.
@ludwigsdiana that makes more sense that they get returned to their origin spot. Maybe I was misinformed, but I've seen them look like they were abandoned.