While grandma and grandpa were visiting recently we took a day trip to Wuppertal to ride the Schwebebahn (swinging train). We had been talking about checking it out for some time, because it is a pretty unique type of train. Since we all had 9 Euro tickets, it was basically free. We stopped in Duesseldorf for some Asian food, since they have the biggest Asian population in Germany. We also enjoyed some ice cream in Wuppertal, and had a pleasant stroll along the Wupper river.
I don’t know that I would make the trip a second time just to ride the Schwebebahn, but it was worth it to see once.