Sounds kind of like Charlie and the Chocolate Factory. But not quite. On one of Katlyn and Chelsea's last days here, we got on an early morning train from Mannheim and headed up to Cologne. We were on a regional train, which followed the Rhein, a route I always enjoy taking. Along the way you can see vineyards, beautiful views of the river and small towns, and lots of castle ruins. One day, I want to visit some of these ruins in person.