In Cochem, Germany in a small hotel on the Moselle river, we stayed in a hotel. We walked the riverbanks and took pictures of the castle at night (http://www.burg-cochem.de/lage-der-burg.html?&L=1). The contours of the neo-gothic building was more than about 330 ft above the river Moselle. Cochem Castle was built around the year 1000. Additional “must do” items include: The historical mustard mill (Senfmühle), built around 1810. For around 6 Eros, take the seselbahn to the Pinnerkreuz mountain and hike up to the cross on the top of the mountain. Also, wine cellars tour and tasting possible at: H.H. Hieronimi, Stadionstraße 2.
Cochem gets quite around 18:00 hours. However, make the most of the morning and big German breakfasts most hotels offer. It is a wonderful city and fun for the family.