aggmaroon said:
We made all our reservations. We went with Sixt for the vehicle. Best feeling for the car and experience more than the price, especially with one way.
Now I need suggestions for London, Brussels, Berlin, and Frankfurt area. I would love to do a day cruise on the Rhine if anyone has done that.
I'd definitely take the ICE down to Heidelberg. Pretty town and if you like planes and other mechanical foolery you can easily get to the technical museums in Sinsheim or Speyer. Both have static aircraft that you can walk through.
As for Frankfurt, it's basically the Dallas of Germany, so there's a lot of stuff to do there, but I wouldn't really say there's a lot to see if you're only in Germany a few days.
Berlin, there will be a lot, so much that it might seem overwhelming at first. Tripadvisor will really help narrow down the things you want to do before you go. Personally, I would recommend going to Postdam to see some green and forest since Berlin can seem like a concrete jail sometimes. Buy some Stoertebeker beer too, it's from the northern coast and very good.
Also, make sure to buy the BVG passes if you're using the subway/S-bahn. The ticket guys in Berlin get in the car with jackets over them and then pull out their badges when the doors shut. Don't make the mistake of blowing 60 euros through Schwarzfahren.
Feel free to get back for anymore German tips, I've lived over there quite a bit and am always happy to help out.